DC Inverter Monoblock Duct Type Air Conditioner Installation and Operation Manual
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3 Troubleshooting and Maintenance
If your air-conditioning unit suffers from abnormal operation or failure, please first check the flowing
points before repair:
Table 4
Failure
Possible
Reasons
The unit cannot be started.
①
The power supply is not connected.
②
Electrical leakage of air-conditioning unit causes tripping
of leakage switch.
③
The operating keys are locked.
④
The control loop has failure.
No power to unit and
alarm is sounding
A gas leak has been detected. Contact your installer and do not
use the Air conditioner.
Poor cooling effect.
①
The air filter is dirty or blocked.
②
There is heat source or too many people inside the room.
③
The door or window is open.
④
There is obstacle at the air intake or outlet.
⑤
The set temperature is too high thus cooling is hindered.
⑥
There is refrigerant leakage.
⑦
The performance of room temperature sensor becomes worse
Poor heating effect
①
The air filter is dirty or blocked.
②
The door or window is not firmly closed.
③
The set room temperature is too low thus heating is hindered.
④
There is refrigerant leakage.
⑤
The outdoor ambient temperature is lower than -5°C.
⑥
Control line is abnormal.
Note:
After carrying out the check of the above items and taking relevant measures to solve the
problems found but the air-conditioning unit still does not function well, please stop the operation of
the unit immediately and contact the local service agency designated by Pioneer air. Only ask
professional serviceman to check and repair the unit.
Routine Maintenance
(1) Cleaning the Air Filter(Operating by the professional)
1) Do not disassemble the air filter when cleaning it. Otherwise failure may be caused
2) If the air-conditioning unit is used in an environment with much dust, you should clean
the air filter frequently (once every two weeks).
