Do not introduce cold outside air into the return duct of a
This may be due to:
– In order to determine if
the solenoid is energized, touch the nut that holds the
– Check unit
– If it is on the
heating cycle, raise the discharge pressure by
valve does not shift, tap it lightly on both ends
Reversing valve used in heat pumps could potentially leak
If voltage is present, loosen the nut on the top of
remove the coil listen carefully, an audible click should
Troubleshooting the reversing valve can be done by
The discharge line should be the same temperature
The true suction should be the same as the suction
valve is leaking
from the compressor is directed back to the suction side,
in the suction line temperature through the reversing
If the valve fails to change its position, test the voltage
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