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)
Indoor and outdoor communication failure. RUN, TIMER – both winking.
Outdoor communication failure. RUN TIMER – both winking.
Indoor room temperature sensor (IRT). RUN-1 time/8s.
Indoor coil temperature sensor (IPT). RUN-2 times /8s.
Outdoor coil temperature sensor (OPT). RUN-3 times /8s.
System abnormity. RUN-4 times /8s.
Model configuration wrong. RUN-5 times /8s.
Indoor fan motor fault. RUN-6 times /8s.
Outdoor temperature sensor. RUN-7 times /8s.
Exhaust temp. sensor. RUN-8 times /8s.
IPM drive and module fault. RUN-9 times /8s.
Outdoor fan motor fault (DC motor). RUN-10 times /8s.
Current sensor fault. RUN-11 times /8s.
Indoor unit EEPROM fault. RUN-12 times /8s.
Temp. switch fault ( on top of the compressor). RUN-13 times /8s.
Voltage sensor fault. RUN-14 times /8s.
Overvoltage /lower voltage protection. RUN: Blink; TIMER: 1 blink /8 sec.
Overcurrent protection. RUN: Blink; TIMER: 2 blink /8 sec.
Exhaust over temperature protection. RUN: Blink; TIMER: 4 blink /8 sec.
Too cool protection in cooling mode. RUN: Bright; TIMER: 5 blink /8 sec.
Overheat protection in cooling mode. RUN: Bright; TIMER: 6 blink /8 sec.
Overheat protection in heating mode. RUN: Bright; TIMER: 7 blink /8 sec.
Outdoor over temperature / lower temperature protection. RUN: Bright; TIMER: 8 blink /8 sec.
Drive protection (software control ). RUN: Blink; TIMER: 9 blink /8 sec.
Connector jumper malfunction. Check if the connector jumper contacts the properly. If replace the PCB, please take off the old for the new PCB.
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
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)
Over voltage /lower voltage
Exhaust over temperature protection
Outdoor coil over temperature protection
Drive fault and protection (V1ˈVP1)
Communication fault with indoor unit
Compressor overheat fault (compressor top switch)
Short-circuit / open-circuit fault of outdoor temperature sensor
Short circuit / open-circuit fault of outdoor heat exchanger temperature sensor
Short-circuit / open-circuit fault of exhaust temperature sensor
Voltage sensor fault
Current sensor fault
Communication fault between power source board and IPM
No feedback from DC fan motor(outdoor unit)
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.
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.
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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