Goodman
Continuous Operation / Inability to Reach Setpoint
Goodman air conditioner runs continuously and rarely shuts off
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Possible Causes
Undersized Goodman AC for home load, Dirty coils reducing capacity, Low refrigerant charge, Thermostat miscalibration or heat gain from location
How to Fix / Troubleshooting
Safety first: Turn off power before cleaning coils or opening equipment.
Steps to address:
- 1. Verify thermostat setpoint: Ensure the thermostat is not set unrealistically low (e.g., 65°F in very hot weather).
- 2. Replace filters and clean coils: As described in earlier entries, ensure both indoor and outdoor coils are clean and airflow is unobstructed.
- 3. Reduce heat load: Close blinds, seal obvious air leaks, and limit oven/dryer use during peak heat.
- 4. Check thermostat location: If the thermostat is in a hot hallway or near a heat source, it may cause extended run times.
When to call a professional: A technician can perform a load calculation, check refrigerant charge, and verify system capacity versus home requirements.
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Repair Difficulty
Easy
2/5
Required Part
Evaporator coil or thermostat
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