Midea ESG-Inv M Series - Page 43

ESG-Inv M
42
Midea ESG-Inv M Series Pool Heat Pump Manual
5.11 F1 Troubleshooting
Digital display output
Procedure
F1: DC bus low voltage protection
Power supply is abnormal.
Yes
Provide normal power
No
Wiring between power supply and
inverter module PCB is wrong
Yes
Ensure the wiring is right
No
Replace inverter module PCB
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