Service manual
Refrigerator (freezer) Double door serial
9
YES
NO
YES
NO
NO
NO
YES
YES
NO
YES
compressor runs
Frost doesn’t form at the evaporator
when operating set for more than
30min
Repair the
compressor
Refrigerant leaks poor
compressing
Power source
separate the PTC-starter from the
compressor and measure the voltage
between M and C of the compressor
Equal to the applied
voltage(rating voltage ±10%)
The applied voltage is not in the
range of rating voltage±10%
Advice the customer to use in
the fixed
Check the
resistance of the
compressor
Test the resistance among M-C, S-C,
and M-S.
Replace the compressor
Check the
resistance of the
PTC
Test the resistance of the both
terminals in the PTC-STARTER
Replace the PTC-STARTER
Check OLP
Check if applying a
regular OLP
OLP works within 30sec, in forcible
OLP operation by turning instant
power on and off
Replace OLP
Check the
starting state
Measure minimum starting voltage after
checking steps1~3 above. And measure
the pressure balance of the PTC with the
interval of more than 5 min
Starts at the voltage
of 85% below
Normal
Starts at the voltage of more than 90%
Check the starting
state at the regular
Normal.
Replace the PTC
1
2
4
2
3
5
5
5
4
4
3
3
4