E-3. Indoor fan motor mechanism locked or no power to blower motor. Check manually by rotating. If rotate freely, check power to motor. If no power PCB defective. Replace it. If hard to rotate motor, replace bearings or motor. Helpful?
You don't mention brand name and type of unit. But E-1 means for 3 problems. 1. Indoor room sensor defective replace it. 2. Indoor blower motor mechanism blocked. Check and rectify by replacing bearing or motor. 3. No power sensing to Blower motor from your PCB. If yes, replace PCB.Helpful?
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