32
Nocooling, compressor works
No
Yes
No
No
Whether the evaporating fan
is working (long rotation)
Check the powersupply,
power cord, and wiring
terminals
Yes
Does the Circuit Board have an
output (delayed for three minutes
to supply the compressor)
Replace thecircuit
board
Check if the compressor
thermal protector and starter
relay are in good condition
No
Replace the
thermalprotector
and start the relay
Yes
Check if the compressor
is running.
Measure
compressor coil
resistance
Resistance is normal
but shaft is seizing
Resistance is abnormal
Replacetheco
mpressor
Yes
Theequipment operates normally
Does the compressor run continuously without stopping?