GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger
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6.2 Maintenance after Seasonal Use
(1) Run the air conditioenr at fan mode for half day at sunny day to dry the internal parts of unit.
(2) If you don’t use the air conditioner for a long time, please cut off the power to save energy; after
cutting off the power, the characters on the screen of wire docntroller will disappear.
7 Troubleshooting
If the air condtiioner can’t operate normally, please check below items before asking for service:
Air conditioner can’t be started up
①
It hasn’t been put through power
②
Leakage switch is tripped
③
Voltage is too low
④
Working buttons are off
⑤
Malfunction of control loop
Air conditioner can operate, but it
will stop operate after for a while
①
There’s obstable in front of condenser
②
Control loop is abnormal
③
Turn on the cooling mode when the outdoor ambinet temperature is
more than 43
℃
(109.4
℉
)
①
Air filter is dirty or blocked
②
There are heat source or too many people in the room
③
Door or winder is open
④
There’re obstacles at air inlet and air otulet
⑤
Set temperature is too high or refrigerant is leaking
⑥
Specification of room tempeature sensor is not good
①
Air filter is dirty or blocked
②
Door or window is not closed well
③
Set temperature is too low
④
Refrigerant is leaking
⑤
Outdoor ambient temperature is lower than -5
℃
(23
℉
)
⑥
Control wiring is abnormal
Indoor fan can’t be started up
under heating mode
①
The installation position for the tube temperature sensor is not porper
②
Tube temperature sensor is not inserted well
③
Wires for tube temperatrue sensor is broken
④
Capacitor is leaking
NOTICE
！
After checking above items, if the air conditioner still can’t operate normally, please stop
the air conditioner immediately and then contact appointed maintenance center.
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