Midea MCH4U-36PHH2 - Page 72

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8.4.2.6 E6 (PFC module protection) error diagnosis and solution.
Error Code
E6
Malfunction
conditions
When the voltage signal that PFC sends to main control board
is abnormal, the display LED will show “E6” and AC will turn
off.
Potential causes
● Wiring mistake
● Faulty outdoor PCB
● Faulty inductance of PFC module
●
PFC module malfunction
Trouble shooting: