Midea MCH2U-18PHH2

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8.4.2.13 P6 (Inverter module (IPM) malfunction) diagnosis and solution.
Error Code
P6
Malfunction conditions
When the voltage signal that IPM send to compressor drive
chip is abnormal, the display LED will show “P6” and AC will
turn off.
Potential causes
● Wiring mistake
● IPM malfunction
● Faulty outdoor fan assembly
● Compressor malfunction
● Faulty outdoor PCB
Trouble shooting: