Haier HC17SG42RB - 6-4. Refrigerator compressor no start

.
SERVICE
MANUAL
Model: HC17SG42RB/HC27SG42RB
15
Issue 2014-8-1
Rev. Ref1407S026V0
6-4. Refrigerator compressor no start
Compressor no working
Check if the home power
is conduct
Connect the power
NO
YES
Check if thermostat is set
at “0”
YES
Adjust thermostat setting position
NO
Check if the thermostat is
normal
Test if the thermostat is normal under power on status:
Method-1: Setting thermostat to coldest position (7 grade), observe if the machine can be
started. If compressor still not start, it means that the thermostat maybe failure.
YES
Check if the PTC starter is
normal?
Test if resistance of PTC starter, if it is ZERO or INFINITE, means the starter is out of
work. For PTC starter, when shake it, it should not have noise, if it has, means the
starter Magnetic Disk burned.
YES
Check if the overload
protector is normal?
1. Measure whether two ends of overload protector is through
using multimeter Ohm grade. Not through means protector is
defective.
2. Measure running current of compressor using clamp-type
tester. If overload protector act when current is normal, means
protector failure and should be replaced.
YES
Check if each connector of PTC
starter overload protector is in
good condition?
Check each connectors of the PTC starter and overload
protector, ensure each contact is in good condition, then
power on and retest the machine.
NOT NORMAL
Compressor
accessories
failure
Compressor
accessories
failure
NOT NORMAL