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Kayla ManningJul 25, 2025
What does a 4-time blink on the left lamp of my Mitsubishi Electric Air Conditioner mean?
- SsarahburnettJul 25, 2025
If the left lamp on your Mitsubishi Electric Air Conditioner blinks 4 times, this indicates a problem with the indoor unit control system. Replace the indoor electronic control P.C. board.