Maytag
Short Cycling
Furnace short cycles, turning on and off frequently without reaching the thermostat setpoint.
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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
Oversized furnace, Dirty air filter, Thermostat located near heat source, High limit switch opening due to poor airflow
How to Fix / Troubleshooting
Safety: Turn off power before accessing internal components.
Steps to check:
- Replace filter: Install a clean, properly sized filter.
- Check vents: Open all supply and return vents to ensure good airflow.
- Thermostat location: Make sure the thermostat is not directly above a supply register, near a space heater, or in direct sunlight.
- Observe furnace: Watch a full cycle. If burners shut off and the blower continues for a while, the high limit may be opening due to overheating.
When to call a technician: If short cycling persists, a professional should evaluate furnace sizing, ductwork, and safety controls.
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Repair Difficulty
Medium
3/5
Required Part
High Limit Switch
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