Power Module Check - Daikin FTXS35K2V1B Service Manual

Check

5.13 Power Module Check

Check No.22
Note: Check to make sure that the voltage between (+) and (–) of the power module is approx. 0 V
before checking.
Negative (–) terminal of
tester (positive terminal
(+) for digital tester)
Positive (+) terminal of
tester (negative terminal
(–) for digital tester)
Resistance is OK.
Resistance is NG.
101
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.
Power module
35 class
UVW
(+)
UVW Power module
(+)
several kΩ ~ several MΩ
0 Ω or
SiBE041213E
Power module
(–)
UVW Power module
∞
Power module
(R16069)
Service Diagnosis
UVW
(–)