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Air Conditioner: No cooling, compressor runs, condenser fan off, very high head, compressor cycling on overload

Updated · by Aurora Star Tech Inc.

No cooling, compressor runs, condenser fan off, very high head, compressor cycling on overload on a air conditioner: Possible causes and checks for: no cooling, compressor runs, condenser fan off, very high head, compressor cycling on overload.

Homeowner with a air conditioner problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Common causes of no cooling, compressor runs, condenser fan off, very high head, compressor cycling on overload

  • Condenser fan motor open winding (infinite Ω), bad run cap, dirty coil

How to fix no cooling, compressor runs, condenser fan off, very high head, compressor cycling on overload: step by step

  1. Power off, ohm motor, replace fan motor, check rotation. (Scenario 32A) p.874 [848]
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

If the unit shows an error code, look it up: Carrier Air Conditioner codes Goodman Air Conditioner codes KeepRite Air Conditioner codes Lennox Air Conditioner codes Trane Air Conditioner codes

Source: General HVAC service practice — verify per model. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

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