Power Module Check - Daikin SUPER MULTI NX CTXS07JVJU Service Manual

Check

7.15 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
 Follow the procedure below to measure resistance between the terminals of the power module
Negative (–) terminal of
tester (positive terminal
(+) for digital tester)
Positive (+) terminal of
tester (negative terminal
(–) for digital tester)
Resistance is OK.
Resistance is NG.
18 class
24/32 class
201
connector, press the protrusion on the connector.
and the terminals of the compressor with a multi-tester. Evaluate the measurement results
referring to the following table.
Power module (+) UVW
UVW Power module (+)
several k ~ several M
Power module (SPM)
S40
Power module (–)
UVW Power module (–)
0  or 
S80
S90 S92 S93
S20 S21
(R17370)
Power module (PM1)
(R16075)
Service Diagnosis
SiUS12-928_B
UVW