Heil
Continuous Operation / Control or Capacity Issue
Heil air conditioner runs continuously and rarely shuts off, even when setpoint is reached
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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
Thermostat miscalibrated or stuck, Low refrigerant reducing capacity, Dirty coils, Air leaks in home
How to Fix / Troubleshooting
Safety first: Turn off power before removing thermostat or opening equipment.
- Step 1 – Verify thermostat reading: Compare thermostat temperature to a reliable thermometer. If off by several degrees, recalibrate or replace the thermostat.
- Step 2 – Clean filters and coils: Ensure maximum efficiency by cleaning indoor and outdoor coils and replacing filters.
- Step 3 – Check for air leaks: Seal obvious gaps around doors, windows, and duct connections.
- Step 4 – Technician evaluation: If the system still cannot reach setpoint, have a pro check refrigerant charge and system sizing.
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Repair Difficulty
Medium
3/5
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