York EVHC 09 DSAAAR Service Manual page 41

Troubleshooting Guide
The fan does not
run when it is set
to supply air.
In the cooling and
heating mode, the
compressor runs,
but the outdoor
fan does not run.
When cooling or
heating, outdoor
fan runs,compressor
doesn't run.
The compressor is
too hot and leads to
the action of the
protector.
The swing fan does
not run.
The indoor fan motor is burned or breaks or
has the heat protector malfunction.
The built-in heat protector of the motor breaks
frequently because the motor is
abnormal.
Wrong connection
The fan capacitor has open circuit or is dama-
ged.
The outdoor fan motor is damaged.
Wrong connection
The outdoor fan capacitor is damaged.
Malfunction of compressor
Breakage of running capacitor of compressor
The voltage is too low or too high.
Wrong wire connection
The protector itself has malfunction.
The refrigerant is not enough or is too much.
The capillary is blocked and the temperature
rises.
The compressor does not run smoothly or is
stuck. The air discharge valve is damaged
The protector itself has malfunction.
The torque of the swing motor is not enough
wrong connection
The controller is damaged• • I C2003 is
damaged, the swing relay can not close,
• •
etc
Replace the fan motor or the defective part.
Replace the fan motor
Make the correction connection based on the circuit
drawing.
Replace the fan capacitor of the same type and same
specification.
Replace the fan motor
Make the correct connection based on the circuit
drawing.
Replace the fan capacitor
Replace the compressor
Replace the capacitor
Manostat is recommended.
Connect the circuit diagram correctly
Use the multimeter to check whether the contact of
the compressor is on when it is not overheated. If it
is not on, then replace the protector
Adjust the volume of the refrigerant
Replace the capillary
Replace the compressor
Replace the protector
First, check whether the connection is wrong. If no,
replace the parts
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