Haier HRFZ-250DAA Service Manual page 21

SERVICE MANUAL
Model: HRFZ-250DAA
.
Check if each connector of starter
overload protector, run capacitor
are in good condition?
YES
Check if the compressor
normal ?
YES
Check if the starting current of
compressor excess too much?
Check each connectors of the starter overload
protector and run capacitor, ensure each contact is in
good condition, then power on and retest the
machine.
is Test the resistance parameter of the compressor; if it is
ZERO, inner winding is short circuit. if it is infinite,
inner winding is break circuit
If all technical parameter of compressor and compressor
accessories (starter, overload protector) are normal after
above test, but compressor still can not be started, and
overload protector action, the actual starting current
excess too much. This phenomenon usually caused by
compressor inner mechanical failure (cylinder-block or
axis-hung problem).
Issue 2012-4-9
Rev. Ref0911S006V0
Compressor
NOT
accessories
NORMAL
failure
21