Revision Date
– 22/12/2014
page 33
8.5 Test compressor
Purpose:
To verify that the internal compressor windings are functioning correctly.
Procedure:
See below.
Disconnect all power leads from the back of the
fridge.
Remove the rear cover (refer to section
Remove the compressor control unit (refer to
section
Identify the 3-pin connector on the side of the
compressor.
Using an ohm meter (Ω), test the resistance of the
two motor windings using the following process.
1. Measure the resistance between the centre
and left pins. The reading should be between
approximately 2.0 and
2.5 ohms (Ω).
2. Measure the resistance between the centre
and right pin. The reading should be between
approximately2.0 and
2.5 ohms (Ω).
TEST PASS
If resistance across both windings is approximately 2.0-
2.5 ohms (Ω), compressor windings are OK.
TEST FAIL
If either winding shows an open circuit, the compressor is faulty and should be replaced.
Compressor
control unit
Left pin
Right pin
3 pin
connector
Centre pin
3 pin
connector