Daikin FTXR42EV1B9 Especificaciones Pagina 153

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SiBE04-624_B Check
Service Diagnosis 143
3.14 Power Module Check
Check No.22
Note: Check to make sure that the voltage between (+) and (–) of the power module (IPM1) 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.
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 ~ several M
Resistance is NG. 0 or
(R18324)
Power module
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