Daikin RXYQ72 Serivce Manual page 254

SiUS39-601
Power Transistor
IGBT (On Inverter
PC Board)
(Decision)
If other than given above, the power unit is defective and must be replaced.
Note: If using a digital tester,
Diode Module
(Decision)
If other than given above, the diode module is defective and must be replaced.
Note: If using a digital tester,
Appendix
Method of Replacing The Inverter's Power Transistors and Diode Modules
∞
and continuity may be reversed.
∞
and continuity may be reversed.
243