Maytag
Blower Stuck in Continuous Mode
Furnace blower runs continuously even when there is no call for heat or cool.
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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 fan set to ON instead of AUTO, Stuck blower relay on control board, Shorted G (fan) thermostat wire to R, Faulty fan limit control (older models)
How to Fix / Troubleshooting
Safety: Turn off power before working on thermostat or furnace wiring.
Steps to check:
- Thermostat setting: Set the fan mode to AUTO. If the blower stops, the system is operating normally.
- Check thermostat wiring: Inspect the thermostat cable for damage. Ensure the G wire is not touching R or other terminals unintentionally.
- Board inspection: If the blower runs even with the thermostat disconnected at the furnace, the blower relay on the control board may be stuck closed.
When to call a technician: A stuck blower relay or faulty fan limit control requires control board or component replacement by a professional.
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Repair Difficulty
Medium
3/5
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