Daikin SiBE04-624_B_FTXR-E Service Manual

Contents

Daikin SiBE04-624_B_FTXR-E Service Manual Manual pdf 153 page image

SiBE04-624_B CheckService Diagnosis 1433.14 Power Module CheckCheck No.22Note: Check to make sure that the voltage between (+) and (–) of the power module (IPM1) isapprox. 0 V before checking. Disconnect the compressor harness connector from the outdoor unit PCB. To disengage theconnector, press the protrusion on the connector. Follow the procedure below to measure resistance between the terminals of the powermodule and the terminals of the compressor with a multi-tester. Evaluate the measurementresults referring to the following table.Negative (–) terminal oftester (positive terminal(+) for digital tester)Power module(+) UVW Power module(–) UVWPositive (+) terminal oftester (negative terminal(–) for digital tester)UVW Power module(+) UVW Power module(–)Resistance is OK. several kΩ ~ several MΩResistance is NG. 0 Ω or ∞(R18324)Power module