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| Air conditioner doesn’t run |
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Q |
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Burned of compressor motor |
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A |
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Check with multimeter, if there is circuit-short, circuit-break or wires earthed in the coil of complete enclosed type compressor motor, change another compressor that with the same model and specification. |
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Q |
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No power supplies or fuse blew |
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A |
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Check if there is no power supplies, check the socket and plug to see if they are loosen and repair them, change the blew fuse. |
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Q |
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Voltage of power is too low |
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A |
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Find out causes when the power voltage is 10% lower than the rated voltage |
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Q |
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There is no response for switch |
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A |
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Check if the switch is broken off or if there is mechanical malfunction, check by multimeter to see if it is connected, if the melt points are not connected, change another switch of the same model and specification |
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Q |
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Compressor crankshaft jammed |
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A |
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Knocks and librates the shell of compressor with rubber stick or hammer that is underlaid by wood block may startup the compressor, if the compressor still cannot run, change the compressor. |
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Q |
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No power supplies or fuse blew |
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A |
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Check if there is no power supplies, check the socket and plug to see if they are loosen and repair them, change the blew fuse. |
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| Bad heating effect |
| |
Q |
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Leakage of heat pharmaceutical |
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A |
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Contact service center |
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| |
Q |
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Dirty or jammed of the air filter |
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A |
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Clean filter to improve airflow |
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Q |
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Doors or windows did not close well |
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A |
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Close door or window to preserve cool (heat) |
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| |
Q |
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The set temperature of room is too low to heat |
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A |
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Rise the set temperature |
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| |
Q |
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The outdoor environment temperature is lower than 19 F |
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A |
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Affect the function of air conditioner. |
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| |
Q |
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Abnormal of control circuitry |
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A |
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Contact the service center |
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| Incomplete of the display in LCD |
| |
Q |
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The LCD frame case did not fixed well |
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A |
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Fix the frame case well |
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| LCD blinks or full screen display when press the Transmit button |
| |
Q |
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Low battery |
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A |
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Change battery |
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| Louver doesn’t run (remote control window type units) |
| |
Q |
|
There is not enough torque for louver |
| |
A |
|
Change louver |
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| |
Q |
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Swing relay SWING cannot suck and close normally |
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A |
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Change swing relay |
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| |
Q |
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Wrong wire connecting |
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A |
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Reconnect wire |
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| No response after connected with the power and turned on |
| |
Q |
|
Fuse blew, power plug inserted loosely, no electricity in socket, no electricity or connecting wire in the unit loosens. |
| |
A |
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Check if there is electricity in the socket first, then check if the plug had inserted in socket well and connected well, last, check if the connecting wires in unit are connected. |
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| No response after electrified |
| |
Q |
|
Blow of the fuse |
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A |
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Change fuse |
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| |
Q |
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Breakage of the transformer |
| |
A |
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Change the transformer |
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| |
Q |
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Breakage of the commutate diode |
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A |
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Change commutate diode |
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| |
Q |
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Breakage of integrated modular CPU |
| |
A |
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Change integrated modular CPU. |
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| No sound for buzzer |
| |
Q |
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Breakage of buzzer |
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A |
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Change the buzzer |
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| Oscillate or noise is too loud |
| |
Q |
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Bad installation of compressor, or the floor stand is not firm enough. |
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A |
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Check if the floor stand is firm |
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| |
Q |
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Unsteady of the install of units |
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A |
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Adjust the location of the units |
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| |
Q |
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Unsteady of the bracket of the unit |
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A |
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Fix the bracket or reinstall |
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| |
Q |
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There are things on the unit |
| |
A |
|
Remove the things |
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| |
Q |
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Loosen of the screw |
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A |
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Tighten the screw |
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| Shortage of cooling air |
| |
Q |
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The set temperature of temperature controller is too high |
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A |
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Lower the set temperature. |
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| |
Q |
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The filter is too dirt that the inlet vent is jammed. |
| |
A |
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Clean the filter |
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| |
Q |
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Abnormal for air outlet from outdoor condenser; there is obstruction in the outlet. |
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A |
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Clean condenser. |
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| |
Q |
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Power voltage unsteady. |
| |
A |
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Adjust power voltage |
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| |
Q |
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The indoor sealing performance is not enough; people in and out frequently, or there is heating equipment in room. |
| |
A |
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Adjust indoor environment |
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| |
Q |
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Outdoor temperature is too high (above 108 F ) |
| |
A |
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Turn off the unit. |
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| |
Q |
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Shortage or excessive of refrigerant. |
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A |
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Add refrigerant or discharge redundant refrigerant in system. |
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| |
Q |
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Door or window is opened. |
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A |
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Close the door or window |
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| |
Q |
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There is obstruction in air inlet or outlet vent. |
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A |
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Withdraw the obstruction. |
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| The air conditioner is running, but not cooling |
| |
Q |
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Improper adjustment of temperature controller. |
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A |
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Lower the temperature for temperature controller |
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| The air conditioner is running, but not cooling (or not heating) |
| |
Q |
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Lack of refrigerant or leakage happened |
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A |
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Leak detect, then vacuumize after filled in the leakage, fill in refrigerant according to stipulation. |
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| |
Q |
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Jam in cooling system |
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A |
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Estimate if the system is jammed or not by the same method of observing condensation on evaporator and pressure value on the high pressure meter, and settle it by system. |
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| |
Q |
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Fan did not run or shortage of air quantity |
| |
A |
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Check if the fan is burned, or incorrect wire connection occured; change a new fan if it is burned. |
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| |
Q |
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Too much dust on filter |
| |
A |
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Clean the filter |
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| |
Q |
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Malfunction, circuit-short or circuit-break of electric regenerator |
| |
A |
|
Change a new electric regenerator. |
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| |
Q |
|
Low efficiency of the compressor itself |
| |
A |
|
Change a new compressor |
|
| |
Q |
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Excessive of refrigerant |
| |
A |
|
Discharge the redundant refrigerant in system |
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| |
Q |
|
Relay in compressor cannot suck and close normally |
| |
A |
|
Change compressor relay. |
|
| |
Q |
|
Breakage of IC2003, cannot offer the correct controller for relay. |
| |
A |
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Change 2003 |
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| |
Q |
|
Circuit-break or circuit-short of indoor sensor |
| |
A |
|
Change sensor or relative elements |
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| The compressor doesn’t startup after electrify |
| |
Q |
|
The set temperature of temperature controller is too high or temperature controller breakage. |
| |
A |
|
Lower the temperature of temperature controller or change temperature controller. |
|
| |
Q |
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Breakage of compressor voltage |
| |
A |
|
Change compressor voltage. |
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| |
Q |
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Breakage of the main On/Off switch |
| |
A |
|
Change the main On/Off switch. |
|
| |
Q |
|
Wrong wire connection |
| |
A |
|
Reconnect the wire |
|
| |
Q |
|
Circuit-open or circuit-short of compressor. |
| |
A |
|
Change compressor. |
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| The fan doesn’t run after powered on |
| |
Q |
|
Fan capacitance circuit-open or circuit-short |
| |
A |
|
Change fan capacitance |
|
| |
Q |
|
Incorrect of the connecting wire |
| |
A |
|
Reconnect the wire |
|
| |
Q |
|
Motor coil circuit-open or circuit-short, or the temperature limiter in motor broke by over heat |
| |
A |
|
Change motor or temperature limiter |
|
| |
Q |
|
Main switch breakage |
| |
A |
|
Change the main switch |
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| The receiving distance of wireless remote controller is short |
| |
Q |
|
Low battery |
| |
A |
|
Change the battery |
|
| The treatment taken by protector when the compressor is over heated |
| |
Q |
|
Shortage or redundant of refrigerant |
| |
A |
|
Adjust the amount of refrigerant |
|
| |
Q |
|
Jam in the capillary, lapse of inspiration temperature occurred. |
| |
A |
|
Change capillary |
|
| |
Q |
|
Compressor cannot run smoothly, crankshaft jammed or breakage of discharge valve. |
| |
A |
|
Change compressor |
|
| |
Q |
|
Malfunction of protector |
| |
A |
|
Check if the contact points are connected by multimeter when the compressor is not over heated, if it is not connecting, change protector. |
|
| The unit turns on and off frequently |
| |
Q |
|
Abnormal of the power voltage |
| |
A |
|
Find out the cause, improve power supply condition, make power supply stable. |
|
| |
Q |
|
Hear emission of condenser is not well, bad ventilation |
| |
A |
|
Clean the dust on condenser, and get rid of the obstruction before discharge vent. |
|
| |
Q |
|
Adding too much refrigerant |
| |
A |
|
Discharge the redundant refrigerant |
|
| Water drop from air conditioner |
| |
Q |
|
Too much dust in condensing drain pan, obstructs in drainage hose |
| |
A |
|
Clean the drainage pan and make the drainage hole smooth. |
|
| |
Q |
|
Bent or staved of the condensing drainage hose |
| |
A |
|
Check the drainage hose; change a new one if the hose is broken. |
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