Oasis Inverter DM12-01.01.10en
58 Service manual
11.2.7 IPM malfunction or IGBT over-strong current protection
11.2.8 Over voltage or over low voltage protection diagnosis and solution
Is the power supply good?
Replace the outdoor e-box
Make sure the power supply is normal
Yes
Yes
Fastening the IPM to the
radiator
No
Check whether the connections between
the outdoor unit PCB and IPM are good?
Check whether the IPM is fixed to radiator
tightly
Replace the IPM
The unit does not work normally
Replace the compressor
No
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