Power Module Check - Daikin FLKS25BAVMB Service Manual

Check
RXS25/35L3V1B
Multimeter

5.13 Power Module Check

Check No.22 Check to make sure that the voltage between (+) and (–) of the power module is about 0 V
before checking.
Positive terminal (+) of
digital multimeter
Negative terminal (–) of
digital multimeter
Resistance is OK.
Resistance is NG.
112
4
3
2
1
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 multimeter. Evaluate the measurement
results referring to the following table.
Power module UVW
(+)
UVW Power module
(+)
several kΩ ~ several MΩ
SiBE05-722EE
Power module
(–)
UVW Power module
0 Ω or ∞
Service Diagnosis
(R20698)
UVW
(–)