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Series 4 Models: “Wall” Type Top Class R32 Refrigerant AC
1.Remote Maintenance
Possible causes of trouble
Power failure
The main power trippe
d
Loose connecon
s
Faulty transformer
The voltage is too high or too lo
w
The remote control is powered off
Broken remote contro
l
Dirty air filte
r
Dirty condenser fin
s
The seng temperature is higher/lower than the room's (cooling/heang
)
The ambient temperature is too high/low when the mode is cooling/heang
Fan mode
SILENCE funcon is acvated (oponal funcon)
Frosng and defrosng frequently
Unit will not start
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The power switch is on but fans will not start
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The temperature on the display board cannot be set
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Unit is on but the wind is not cold (hot)
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Unit runs, but shortly stops
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The unit starts up and stops frequently
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Unit runs connuously but insufficient cooling (heang)
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Cool can not change to heat
Unit is noisy
Test method / remedy
Test voltag
e
Close the power switch
Inspect connecons - ghten
Change the transformer
Test voltag
e
Replace the baery of the remote contro
l
Replace the remote contro
l
Clean or replac
e
Clea
n
Adjust the seng temperature
Turn the AC late
r
Adjust to cool mode
Turn off SILENCE funcon.
Turn the AC late
r
Refrigerant Circuit
Electrical Circuit
