Protector is
activated due to
overheating of the compressor
Refrigerant is insuffi cient or super abundance
Capillary is blocked and the suction
temperature is rising
The compressor can run smoothly or is stuck.
The air discharge valve is damaged.
Adjust the quantity of the refrigerant
Replace capillary
Replace the compressor
Compressor
is
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| Use the multimeter to check whether the contact point of the |
| Protector has malfunction | |||
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| compressor is conducted at the timer of | |
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| can’t be conducted, please replace the protector. |
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| Supply voltage is abnormal |
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| Check the reason, improve the power supply condition and |
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| add the regulated power supply | |
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| The radiating for evaporator and condensor is |
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| Get rid of the dust on the evaporator and condensor, remove |
| not good; Poor air ventilation |
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| the obstacles at the air outlet |
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| The air conditioner capability does not match |
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| the area of the room, i.e. so called “Big system, |
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| Slect the A/C which is applicable to the room areas |
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| small room”. |
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Reveiving distance of remote control
is too short
LCD display fl ashes or when pressing the transmit button the entire screen is displayed.
Replace the battery
Battery’s capacity is insuffi cient
Replace the battery
Replace the battery
LED display is found short of stroke
The LCD frame hasn’t fi xed well
Fix the LCD frame properly
Vibration and noise are 
abnormal
The compressor hasn’t installed well and the
base is unstable
The unit hasn’t placed fl atly and stable
The unit’s support is unstable
Check whether the base is fi rm
Adjust the unit’s position
Strengthen the support or refi t it
There are foreign objects on the unit
Get rid of the foreign objects
Screws are loosened
Tighten the screws
As for the above malfunction analysis, there aren’t malfunction related to heating for the cooling only unit.
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