AEG
Insufficient Heating Capacity / Heat Pump Performance Loss
Air conditioner runs but does not heat the room effectively in HEAT mode
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Outdoor coil frosted and not defrosting properly, Low refrigerant charge, Dirty outdoor coil, Incorrect mode or temperature setting
How to Fix / Troubleshooting
Safety: Be cautious of hot surfaces on the outdoor unit.
- Check mode: Ensure the unit is set to HEAT mode and the set temperature is higher than room temperature.
- Observe defrost cycles: In cold weather, the outdoor coil will frost and the unit will periodically defrost. This is normal. However, if the coil remains heavily iced, defrost may not be working correctly.
- Clean outdoor coil: Turn off power and gently clean the outdoor coil to improve heat exchange.
- Check airflow: Ensure indoor and outdoor airflow are not obstructed by furniture, covers, or snow.
- If heating remains weak: A technician should check refrigerant charge, reversing valve operation, and defrost control.
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Repair Difficulty
Medium
3/5
Required Part
Outdoor Heat Exchanger Coil
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