Haier air conditioner | Edition: 20070116 |
F1: The protection of IPM
Electrify the machine again and turn it on with the remote controller, then measure temperature on the module radiator and decide whether it is too high.
No
With a multimeter, test whether there is diode characteristic between the three terminals U/V/W and whether the two terminals P/N of IPM module and the diode characteristic is exist.
Yes
Test with a multimeter, and check whether the resistance values among Phases U, V and W of compressor are equal and between 1 and 3O.
No
The compressor should be damaged.
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Yes
No
Yes
IPM Module might be poorly radiated and need to be recoated with heat conducting paste and reinstalled.
IPM Module is damaged and needs replacing.
IPM Module is damaged and needs replacing.
