Midea MS9V-18HRDN1-QC2(B) 9V SERIES - Page 43

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9.2.3 E2(zero-crossing signal error) diagnosis and solution
Turn off the power supply and turn on it
again 5 seconds later
Is power supply and
connection of connectors
good?
Indoor PCB is defective.
Replace the indoor PCB.
Be sure the power supply is
good and correct the
connection
NO
YES