SiBE121135
Check
Service Diagnosis
335
8.15 Power Module Check
Check No.22
Note:
Check to make sure that the voltage between (+) and (–) of the power module (PM1) is approx.
0 V before checking.
Disconnect the compressor harness connector from the outdoor unit PCB. To disengage the
connector, press the protrusion on the connector.
Follow the procedure below to measure resistance between the terminals of the power
module and the terminals of the compressor with a multi-tester. Evaluate the measurement
results referring to the following table.
∗
The illustration is for 40/50/52/58 class as representative.
Negative (–) terminal of
tester (positive terminal
(+) for digital tester)
Power module (+)
UVW
Power module (–)
UVW
Positive (+) terminal of
tester (negative terminal
(–) for digital tester)
UVW
Power module (+)
UVW
Power module (–)
Resistance is OK.
several k
Ω
~ several M
Ω
Resistance is NG.
0
Ω
or
∞
Power module (PM1)
(R16074)
Содержание Super Multi NX 3MKS50E3V1B
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