Daikin BA-Series, Руководство по обслуживанию, Страница: 120 / 137

Check SiBE05-722ED
109 Service Diagnosis
5.13 Power Module Check
Check No.22
Note: Check to make sure that the voltage between (+) and (–) of the power module or the diode
bridge is approximately 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 (+) or (–) terminal of the
power module or the diode bridge, and the U, V, or W terminal of the compressor with a
multimeter. Evaluate the measurement results referring to the following table.
RK(X)S25/35E2V1B
Negative (–) terminal of multimeter
(positive terminal (+) for digital
multimeter) Power module (+)
or
Diode
bridge (+)
UVW Power module
(–)
or
Diode
bridge (–)
UVW
Positive (+) terminal of multimeter
(negative terminal (–) for digital
multimeter) UVW Power module (+)
or
Diode
bridge (+)
UVW Power module
(–)
or
Diode
bridge (–)
Resistance is OK. several k
Ω
~ several M
Ω
Resistance is NG. 0
Ω
or
∞
(R19945)
Diode bridge