Carrier
Short Cycling
Carrier air conditioner turns ON but shuts OFF after a few minutes
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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
Dirty coils causing high pressure, Oversized unit, Faulty thermostat placement near supply air, Compressor overheating
How to Fix / Troubleshooting
Safety: Turn OFF power before cleaning coils.
- Step 1 – Clean filters and coils: Ensure both indoor and outdoor coils and filters are clean to prevent overheating.
- Step 2 – Check thermostat location: For ducted systems, ensure the thermostat is not directly in the path of supply air or near heat sources.
- Step 3 – Observe outdoor unit: See if the outdoor unit stops when the indoor unit stops. If the compressor is very hot to the touch (do not burn yourself), it may be overheating.
- Step 4 – Technician evaluation: A Carrier technician should check refrigerant charge, compressor current, and control logic if short cycling persists.
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Repair Difficulty
Medium
3/5
Required Part
Room Thermostat / Remote Sensor
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