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Teresa WhiteAug 11, 2025
What to do if the OPERATION INDICATOR lamp on my Mitsubishi Electric MU-A18WV-E1 is flashing?
- MMatthew AyalaAug 11, 2025
If the OPERATION INDICATOR lamp on your Mitsubishi Electric Air Conditioner is flashing, it could be due to several reasons: * Trouble with the room temperature or indoor coil thermistor: Check the room temperature thermistor and indoor coil thermistor. * Trouble with the indoor fan motor: Consult the relevant check section for the indoor fan motor. * Trouble with the indoor unit control system: Replace the indoor electronic control P.C. board. * Trouble with a thermistor in the outdoor unit: Refer to the check section for the outdoor thermistor on page 30. * Trouble with the outdoor control system: Replace the deicer P.C. board. * Trouble with low discharge temperature protection: Refer to the check section for the LEV on page 30.