Honeywell Home Cooling Short Cycling / Improper Cycle Rate

Thermostat calls for cooling but AC short cycles (frequent on/off, poor dehumidification)

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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 cycle rate too high, Oversized AC unit, Thermostat near return grille, Low refrigerant charge causing safety trips

How to Fix / Troubleshooting

Safety: Do not attempt to adjust refrigerant charge yourself; this requires a licensed technician.

  • Relocate thermostat if needed: Avoid mounting the thermostat near return air grilles or in direct sunlight.
  • Adjust cooling cycle rate: In the Honeywell Home installer menu, set the cooling cycles per hour to the recommended value for your system.
  • Check air filter and coils: Replace dirty filters and ensure indoor coils are not iced over. If ice is present, turn system off and call a technician.
  • Professional evaluation: Persistent short cycling may indicate an oversized system or refrigerant issue that must be addressed by an HVAC professional.
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Repair Difficulty

Medium 3/5
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