Method Of Replacing Inverter's Power Transistors Modules - Daikin RMXS-L Series Service Manual

Method of Replacing Inverter's Power Transistors Modules

10.Method of Replacing Inverter's Power Transistors
Modules
Check the power semiconductors mounted on the main PCB (A1P) with a multimeter.
Items to be prepared
Preparation
Main PCB (A1P)
270
Multimeter : Prepare the digital type of multimeter with diode check function.
Turn OFF the power supply. Then, after a lapse of 10 minutes or more, make measurement of
resistance.
To make measurement, disconnect all connectors and terminals.
C –
C +
SiUS181631EA
W
V
U
(R13060)
Troubleshooting