Sencor
Reduced Heating Capacity
Unit runs in heating mode but provides insufficient heat, especially in cold weather.
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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
Iced-up outdoor coil, Low refrigerant charge, Faulty outdoor coil sensor, Defrost cycle not operating correctly
How to Fix / Troubleshooting
Safety first: Turn off power before touching the outdoor unit.
- Step 1 – Inspect outdoor coil: Check for heavy frost or ice. Light frost is normal; thick ice indicates defrost issues.
- Step 2 – Clear obstructions: Remove snow, leaves, and debris around the outdoor unit.
- Step 3 – Run defrost: Allow the unit to run; it should periodically enter defrost mode. If not, check the outdoor coil sensor as in F5.
- Step 4 – Indoor airflow: Clean indoor filters and ensure vents are unobstructed.
- Step 5 – Professional service: If heating remains weak, a technician should check refrigerant charge and defrost control operation.
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Repair Difficulty
Medium
3/5
Required Part
Outdoor Coil Temperature NTC Sensor
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