Code Error AC DAIKIN
A0 kesalahan perangkat proteksi eksternal
A1 indor PCB cacat
A3 indor kerusakan sistem pembuangan tingkat kontrol
A5 indor freeze-up pencegahan
A6 indor fan motor kunci,overload
A7 kerusakan indor ayunan tutup
A9 indor EEV AF tiriskan tingkat indor atas batas (penyumbatan)
AJ kerusakan indor kapasitas perangkat set
C3 indor termistor menguras
C4 indor kerusakan termistorpipa cair
C5 indor kerusakan pipa gas termistor
C7 indor bawah kisi limit switch/motor rusak
C9 indor termistor udara
CC indor kerusakan sensor kelembaban
CA indor termistor udara debit kerusakan
CJ indor termistor remot control rusak
CE indor panas radiasi sensor
E0 terbuka aktivasi perangkat keselamatan diluar ruangan
E1 terbuka PCB cacat
E3 terbuka aktivasi tinggi saklar tekanan
E4 terbuka aktivasi rendah tekanan beralih
E5 terbuka aktivasi dari kompresor dengan api perlindungan
E5 terbuka kompresor bermotor kunci
E6 luar kompresor memulai kesalahan
E6 luar ruangan standar kompresor kunci/arus lebih
E7 luar ruangan fan bermotor kunci,overload
E8 inverter masukan arus lebih terbuka
E9 outdor EEV katup terbuka
EA empat cara rusak.
F3 terbuka debit suhu pipa abnormal
F6 refregerant terbuka overcharged penurunan
FC tekanan luar rendah
H3 luar ruangan tinggi tekanan beralih cacat
H4 luar rendah tekanan beralih cacat
H6 terbuka kompresor posisi motor deteksi sensor kesalahan
H7 luar ruangan fan posisi motor deteksi kesalahan sensor
H8 transformator sekarang terbuka kesalahan kerusakan
H9 terbuka udara termistor
J1 kerusakan outdor sensor tekanan
J2 kerusakan sensor terbuka sekarang
J3 terbuka debit pipa termistor thermistor
J4 tekanan saturasi luar rendah
J5 outdor hisap termistor pipa kerusakan
J6 terbuka panas termistor penukar kerusakan
J7 terbuka panas penukar cair termistor kerusakan
J8 outdor termistor pipa cairan kerusakan
J9 terbuka gas termistor pipa kerusakan
JA terbuka debit tekanan pipa sensor kerusakan.
JC outdor tekanan hisap pipa sensor kerusakan
JH terbuka minyak sensor suhu kerusakan
L0 terbuka inverter kotak komponen terbuka
L3 elektronik terlalu panas
L4 inverter pendinginan cacat terbuka
L5 terbuka kompresor bermotor kesalahan tanah,sirkuit pendek
L6 terbuka kompresor bermotor landasan/hubungan pendek arus lebih
L7 masukan terbuka jumlah
L8 terbuka komp berlebihan,motor terputus
L9 terbuka kompresor kunci
LA daya luar ruangan unit kerusakan
LC transmisi terbuka antara inverter dan luar ruangan
P1 inverter terbuka lebih riak termistor
P3 terbuka kelainan daya
P4 satuan kelembaban sensor terbuka kerusakan kegagalan
PJ luar ruangan kapasitas resistor set kekurangan
U0 sistm pendingin atau kegagalan
EEV U1 sistem fase negatif, fase buka
U2 sistm power suply cukup
U3 pengkabelan sistm memeriksa operasi tidak di eksekusi
U3 sistm mismatch unit indor dan outdor (split saja)
U4 sistm transmisi antara unit dalam ruangan
U5 sistm transmisi untk remote controler
U6 transmisi kerusakan sistm outdor untk BP unit
U7 sistm transmisi antara unit luar
ruangan
U7 kerusakan terbuka antara papan outdor (RMX/ RX RK)
U8 sistm transmisi antara master dan slave R / C
U9 sistm transmisi kesalahan antara ruangan untk luar ruangan sistm nomor
UA berlebihan fancoils sistm duplikasi alamat UC dari pusat pengendali kesalahan transmisi sistem
UE antara indor & pusat sistm
UF sistm refregerasi tidak diatur / kabel-pipa sistem
UF terminal 1 & 3melintasi ( split/skyair)
UH sistem-sistem kesalahan,pendinginan sistem mengatur
M1 sistm PCB cacat
M8 sistm transmisi kesalahan antara pengendali pusat
MA sistm kombinasi yg tdk benar pengendali opsional
MC sistm alamat duplikasi, pengaturan yg tdk benar
64 MVA unit indor udara termistor kesalahan
65 MVA diluar udara kesalahan termistor
68 MVA 6A damper MVA sistem alarm
6A sistem MVA damper & termistor kesalahan kerusakan
MVA 6F dari remote controler kerusakan
6H MVAswitch pintu atau konektor
94 MVA transmisi kesalahan internal kode kesalahan grey, sistm masih berjalan,
tetapi periksa secepatnya
Failure type = In and out communication failure
LED CODE = RUN,TIMER -both winking
DIGITAL LED CODE = E0
Failure type = Outdoor communication failure
LED CODE = RUN,TIMER -both winking
DIGITAL LED CODE = EC
Failure type = Outdoor sensor
LED CODE = RUN-1 time/8s
DIGITAL LED CODE = E1
Failure type = Indoor coil temperature sensor
LED CODE = RUN-2 times/8s
DIGITAL LED CODE = E2
Failure type = Outdoor coil temperature sensor
LED CODE = RUN-3 times/8s
DIGITAL LED CODE = E3
Failure type = System abnormity
LED CODE = RUN-4 times /8s
DIGITAL LED CODE = E4
Failure type = Type mismatch
LED CODE = RUN-5 times /8s
DIGITAL LED CODE = E5
Failure type = Indoor fan motor
LED CODE = RUN-6 times /8s
DIGITAL LED CODE = E6
Failure type = Outdoor temperature sensor
LED CODE = RUN-7 times /8s
DIGITAL LED CODE = E7
Failure type = Discharge temperature sensor
LED CODE = RUN-8 times /8s
DIGITAL LED CODE = E8
Failure type = Invert module abnormity
LED CODE = RUN-9 times /8s
DIGITAL LED CODE = E9
Failure type = Outdoor fan motor (DC)
LED CODE = RUN-10 times /8s
DIGITAL LED CODE = EF
Failure type = Current sensor
LED CODE = RUN--11 times /8s
DIGITAL LED CODE = EA
Failure type = EEPROM failure
LED CODE = RUN-12 times /8s
DIGITAL LED CODE = EE
Failure type = Top of compressor temperature switch
LED CODE = RUN-13 times /8s
DIGITAL LED CODE = EP
Failure type = Voltage sensor
LED CODE = RUN-14 times /8s
DIGITAL LED CODE = EU
Protection display code list:
Protection type = higher or lower voltage
LED CODE = RUN-winking,TIMER-1 time/8s
DIGITAL LED CODE = P1
Protection type = Over current
LED CODE = RUN- winking,TIMER-2 times /8s
DIGITAL LED CODE = P2
Protection type = Discharge temperature
LED CODE = RUN- winking,TIMER-4 times /8s
DIGITAL LED CODE = P4
Protection type = Over cooling in cooling mode
LED CODE = RUN-light,TIMER-5 times /8s
DIGITAL LED CODE = P5
Protection type = Over heating in cooling mode
LED CODE = RUN- light,TIMER-6 times /8s
DIGITAL LED CODE = P6
Protection type = Over heating in heating mode
LED CODE = RUN- light,TIMER-7 times /8s
DIGITAL LED CODE = P7
Protection type = Outdoor temperature too high or low
LED CODE = RUN- light,TIMER-8 times /8s
DIGITAL LED CODE = P8
Protection type = Drive protection(Overload)
LED CODE = RUN- winking,TIMER-9 times/8s
DIGITAL LED CODE = P9
Protection type = Module self protection
LED CODE = RUN- winking,TIMER-10 times/8s
DIGITAL LED CODE = P0
Outdoor failure display
There is a LED on outdoor power board, when compressor is running; it is normally light;
when no feedback of signal to power board from compressor, it will wink by lighting 1s and
going out 1s. If failures happened, it will light 0.5s, go out 0.5s, winking several times and go
out 3s for a cycle to indicate failures. The failure list is the follow:
Wink time = 1
Failure = IPM protection
Wink time = 2
Failure = higher or lower voltage
Wink time = 3
Failure = Over current
Wink time = 4
Failure = Discharge temperature too high
Wink time = 5
Failure = Outdoor coil temperature too high
Wink time = 6
Failure = Drive abnormity
Wink time = 7
Failure = Communication abnormity with indoor unit
Wink time = 8
Failure = Compressor over heat (switch on top of compressor)
Wink time = 9
Failure = Outdoor air temperature sensor failure
Wink time = 10
Failure = Outdoor coil temperature sensor failure
Wink time = 11
Failure = Outdoor discharge pipe temperature sensor failure
Code Error AC LG
Keyword Response
00 Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message.
01 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor
1 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor
02 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor.
2 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor.
03 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power
3 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power
04 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float.
4 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float.
05 Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4
5 Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4
06 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21
6 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21
07 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06.
7 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06.
RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound.
08 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no
Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty.
RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound.
8 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no
Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty.
09 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error - Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control.
9 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error - Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control.
10 RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8
11 Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly
12 RAC Product = EEPROM Sum Check Error, text 60 for help.
13 RAC Product = PSC (Reactor) Error, text 27 for help.
14 RAC Product = Compressor Phase Current Error
15 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
16 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
17 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
18 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
19 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
20 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
21 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current
22 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms . Check to earth 50 MOhm minimum, check run current
23 Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB
24 Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip.
25 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB
26 Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs
27 Inverter current irregularity. Check inverter PCB, check reactor connections and its resistance is less than 1 ohm.
28 Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB
29 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
30 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
31 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
32 Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge
33 Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge
34 Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework
35 Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open
36 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
37 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
38 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
39 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
40 Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs
41 Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C.
42 Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
43 High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar
44 Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C. If OK replace PCB, if not replace sensor
45 Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
46 Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
47 Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor
48 Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics
49 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB
50 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
51 Unit mismatch. Check model number of units do not exceed maximum. Multi V - also check Sub outdoor unit dipswitch settings
52 Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs . If OK either inverter or main PCB defective
53 Comms error indoor to outdoor unit. Check your wiring . Split and Multi - check voltage from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4
54 Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
55 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
56 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
57 Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective
58 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
59 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
60 Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable.
61 Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables
62 Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V - check inverter cooling fan
63 Multi F(DX) - "Cond. Pipe Sensor Temp. Low" (opposite to Error Code 61). Check Temperature/Resistance reading and replace sensor if found to be faulty. If sensor okay, check for cause of low temperature and rectify.
64 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
65 Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C
67 Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and/or electrical failure, if okay replace pcb.
100 Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant
101 Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant
102 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant
103 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant
104 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units
105 Communication error between outdoor main PCB and fan PCB. Check plug connections and LEDs. If OK, replace either main or fan PCB
106 Outdoor unit fan motor high current. Check fans rotate freely, and are connected correctly
107 Outdoor unit low voltage to fan PCB. Check 300 Vdc supply, check fuses and plug connections. If OK, replace fan PCB
108 Communication error between outdoor main PCB, and fan PCB. Check plug connections and LEDs. If OK replace either main or fan PCB
109 Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
110 Sub 1 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
111 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units
113 Main outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
114 Main outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
115 Main outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
116 Sub 1 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar
117 Sub 1 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
118 Sub 1 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor
120 Sub 1 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor
121 Sub 1 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor
122 Sub 1 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor
123 Sub 1 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
124 Sub 1 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
125 Sub 1 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
126 Sub 1 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
127 Sub 1 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
128 Sub 2 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar
129 Sub 2 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
130 Sub 2 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor
132 Sub 2 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C.if not replace sensor
133 Sub 2 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C. if not replace sensor
134 Sub 2 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C.if not replace sensor
135 Sub 2 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
136 Sub 2 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
137 Sub 2 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
138 Sub 2 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
139 Sub 2 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
140 Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
141 Sub 2 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
142 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units
143 Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
144 Sub 1 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
145 Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
146 Sub 2 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
147 Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%).check fuses, if fuses OK replace outdoor main PCB
148 Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
149 Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
150 Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
151 Faulty 4 way valve. Check solenoid coil and output from PCB. If OK, mechanical failure.
152 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant
153 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant
154 Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
155 Sub 3 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
156 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units
157 Sub 3 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar
158 Sub 3 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
159 Sub 3 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor
161 Sub 3 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor
162 Sub 3 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor
163 Sub 3 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C.if not replace sensor
164 Sub 3 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
165 Sub 3 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
166 Sub 3 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
167 Sub 3 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
168 Sub 3 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
169 Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
170 Sub 3 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
171 Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
172 Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
173 Main outdoor unit standard compressor not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
174 Sub 1 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
175 Sub 1 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
176 Sub 2 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
177 Sub 2 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
204 Comms Error between Outdoor Unit and HR Box No1. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB
208 Comms Error between Outdoor Unit and HR Box No2. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB
212 Comms Error between Outdoor Unit and HR Box No3. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB
240 Central controller wiring error. Check all comms wiring, including between controller and CNU, and IP addresses. If OK possible defective CNU
241 Central controller data sending error. Either defective CNU or Central controller initialisation failure
242 Central controller data receiving error. Either defective CNU or Central controller initialisation failure
243 Central controller. Comms cable too long or picking up external electrical noise. If OK, mismatching of controllers, or defective CNU
244 Central controller data receiving time out. Either defective CNU or Central controller initialisation failure
245 Central controller data sending time out. Either defective CNU or Central controller initialisation failure
246 Central controller data receiving time out. Either defective CNU or Central controller initialisation failure
250 Central controller data receiving error. Either comms cable picking up external electrical noise, or defective CNU
251 Central controller receiving no data. Either comms cable picking up external electrical noise, or defective CNU
252 Central controller incorrect address error. Check addresses match, if OK either comms cable picking up external electrical noise, or defective CNU
253 Central Controller Disconnection Error, No response from Air Conditioner. Check wiring, if OK either comms cable picking up external electrical noise, defective CNU, or Interface.
C1 Indoor unit return air sensor fault, Open or Short. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor
C2 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor.
C4 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float.
C5 Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4
C6 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current
C7 Splits = Compressor Over Current (CT2), also see Code 06.
RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound.
C8 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no
Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty.
C9 Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB.
CA Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C.
CC RAC Product = EEPROM Sum Check Error, text 60 for help.
Cd RAC Product = PSC (Reactor) Error, text 27 for help.
CE RAC Product = Compressor Phase Current Error
CH00 Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message.
CH01 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor
CH02 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor.
CH03 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power
CH04 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float.
CH05 Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4
CH06 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21
CH07 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06.
RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound.
CH08 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no
Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty.
CH09 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = indoor PCB failure. Replace PCB
CH10 RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8
CH11 Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly
CH12 no
