Electrolux EXH09HL1W Service Manual page 44

# Example of LED sequence:
Single fault code sequence.
Mutable fault code sequence.
(2) Low Voltage protection
PL is displayed on indoor unit
Yellow LED lamp of outdoor unit blinks for 12 times
# Check voltage of power supply.
(3) High voltage protection
PH is displayed on indoor unit
Yellow LED lamp of outdoor unit blinks for 13 times.
# Check voltage of power supply.
210-10 ADL 44/62 599 75 60-77