Daikin R410As Service Manual page 295

Method of Replacing The Inverter's Power Transistors and Diode Modules
Power Transistor
IGBT (On Inverter
PC Board)
(Decision)
If other than given above, the power unit is defective and must be replaced.
If using a digital tester, ∞ and continuity may be reversed.
Note:
Diode Module
(Decision)
If other than given above, the diode module is defective and must be replaced.
If using a digital tester, ∞ and continuity may be reversed.
Note:
284
Si39-302
Appendix