Daihatsu Inverter Air Conditioner Error Codes; When air conditioner status is abnormal, temperature indictor on indoor unit will blink to display corresponding error code. Please refer to below list for identific ation of error code.
| Digital LED Code | Failure Type-LED Code-Function Indicator (flash) |
|---|---|
| E0 | Indoor and outdoor communication failure. RUN, TIMER – both winking. |
| EC | Outdoor communication failure. RUN TIMER – both winking. |
| E1 | Indoor room temperature sensor (IRT). RUN-1 time/8s. |
| E2 | Indoor coil temperature sensor (IPT). RUN-2 times /8s. |
| E3 | Outdoor coil temperature sensor (OPT). RUN-3 times /8s. |
| E4 | System abnormity. RUN-4 times /8s. |
| E5 | Model configuration wrong. RUN-5 times /8s. |
| E6 | Indoor fan motor fault. RUN-6 times /8s. |
| E7 | Outdoor temperature sensor. RUN-7 times /8s. |
| E8 | Exhaust temp. sensor. RUN-8 times /8s. |
| E9 | IPM drive and module fault. RUN-9 times /8s. |
| EF | Outdoor fan motor fault (DC motor). RUN-10 times /8s. |
| EA | Current sensor fault. RUN-11 times /8s. |
| EE | Indoor unit EEPROM fault. RUN-12 times /8s. |
| EP | Temp. switch fault ( on top of the compressor). RUN-13 times /8s. |
| EU | Voltage sensor fault. RUN-14 times /8s. |
| P1 | Overvoltage /lower voltage protection. RUN: Blink; TIMER: 1 blink /8 sec. |
| P2 | Overcurrent protection. RUN: Blink; TIMER: 2 blink /8 sec. |
| P4 | Exhaust over temperature protection. RUN: Blink; TIMER: 4 blink /8 sec. |
| P5 | Too cool protection in cooling mode. RUN: Bright; TIMER: 5 blink /8 sec. |
| P6 | Overheat protection in cooling mode. RUN: Bright; TIMER: 6 blink /8 sec. |
| P7 | Overheat protection in heating mode. RUN: Bright; TIMER: 7 blink /8 sec. |
| P8 | Outdoor over temperature / lower temperature protection. RUN: Bright; TIMER: 8 blink /8 sec. |
| P9 | Drive protection (software control ). RUN: Blink; TIMER: 9 blink /8 sec. |
| P0 | Module protection (hardware control). RUN: Blink; TIMER: 10 blink /8 sec. |
| C5 | Connector jumper malfunction. Check if the connector jumper contacts the properly. If replace the PCB, please take off the old for the new PCB. |
| H6 | PC motor (indoor fan) can’t run. Feedback terminal of PG motor hasn’t been connected firmly. The control end of PG motor hasn’t been connected firmly |
| U8 | Malfunction of zero cross detection circuit for PG motor (indoor fan). Control panel has been damaged. |
Outdoor failure display
There is a LED on outdoor power board, it blinks 1s ON and 1s OFF while compressor standby and it always light (ON) while compressor running; If there is failure happened on ODU, The indicator (LED) alerts the fault in a cycle as such that it is bright for 0.5 seconds, dark for 0.5 seconds, blinks “n” times and then dark for 3 seconds. For details as table below:
Display on outdoor power source board:
| blink time (n) | Failure |
|---|---|
| 1 | IPM protection |
| 2 | Over voltage /lower voltage |
| 3 | Overcurrent |
| 4 | Exhaust over temperature protection |
| 5 | Outdoor coil over temperature protection |
| 6 | Drive fault and protection (V1ˈVP1) |
| 7 | Communication fault with indoor unit |
| 8 | Compressor overheat fault (compressor top switch) |
| 9 | Short-circuit / open-circuit fault of outdoor temperature sensor |
| 10 | Short circuit / open-circuit fault of outdoor heat exchanger temperature sensor |
| 11 | Short-circuit / open-circuit fault of exhaust temperature sensor |
| 12 | Voltage sensor fault |
| 13 | Current sensor fault |
| 14 | IPM fault |
| 15 | Communication fault between power source board and IPM |
| 16 | No feedback from DC fan motor(outdoor unit) |
| 17 | Defrost state |
Daihatsu Air Conditioner Troubleshooting
Please check below items before asking for maintenance. If the malfunction still can’t be eliminated, please contact local dealer or qualified professionals.
| Trouble | Solution |
|---|---|
| Indoor unit can’t receive remote controller’s signal or remote controller has no action. | Whether it’s interfered severely (such as static electricity,stable voltage)? Pull out the plug. Reinsert the plug after about 3 min, and then turn on the unit again. |
| Whether remote controller is within the signal receiving range? Signal receiving range is 8m. | |
| Whether there are obstacles? Remove obstacles. | |
| Whether remote controller is pointing at the receiving window? Select proper angle and point the remote controller at the receiving window on indoor unit. | |
| Is sensitivity of remote controller low; fuzzy display and no display? Check the batteries. If the power of batteries is too low, please replace them. | |
| No display when operating remote controller? Check whether remote controller appears to be damaged. If yes, replace it. | |
| Fluorescent lamp in room? Take the remote controller close to indoor unit. Turn off the fluoresent lamp and then try it again. | |
| No air emitted from indoor unit | Air inlet or air outlet of indoor unit is blocked? Eliminate obstacles. |
| Under heating mode, indoor temperature is reached to set temperature? After reaching to set temperature, indoor unit will stop blowing out air. | |
| Heating mode is turned on just now? In order to prevent blowing out cold air, indoor unit will be started after delaying for several minutes, which is a normal phenomenon. | |
| Air conditioner can’t operate | Power failure? Wait until power recovery. |
| Is plug loose? Reinsert the plug. | |
| Air switch trips off or fuse is burnt out? Ask professional to replace air switch or fuse. | |
| Wiring has malfunction? Ask professional to replace it. | |
| Unit has restarted immediately after stopping operation? Wait for 3 min, and then turn on the unit again. | |
| Whether the function setting for remote controller is correct? Reset the function. | |
| Mist is emitted from indoor unit’s air outlet | Indoor temperature and humidity is high? Because indoor air is cooled rapidly. After a while, indoor temperature and humidity will be decrease and mist will disappear. |
| Odours are emitted | Whether there’s odour source, such as furniture and cigarette, etc. Eliminate the odour source. Clean the filter. |
| Air conditioner operates normally suddenly | Whether there’s interference, such as thunder, wireless devices, etc. Disconnect power, put back power, and then turn on the unit again. |
| Outdoor unit has vapor | Heating mode is turned on? During defrosting under heating mode, it may generate vapor, which is a normal phenomenon. |
| “Water flowing” noise | Air conditioner is turned on or turned off just now? The noise is the sound of refrigerant flowing inside the unit, which is a normal phenomenon. |
| Cracking noise | Air conditioner is turned on or turned off just now? This is the sound of friction caused by expansion and/or contraction of panel or other parts due to the change of temperature. |
Introduction for buttons on remote controller
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