US Stove Convection Blower Not Starting

Furnace runs but room blower never comes on; cabinet becomes very hot.

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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

Failed convection blower motor, Open blower thermal protector, Faulty blower relay on control board, Disconnected blower wiring

How to Fix / Troubleshooting

Safety first: Turn off and unplug the furnace. The cabinet may be very hot; allow it to cool before touching.

Steps:

  • 1. Check blower wiring: Ensure the blower connector is firmly attached and wires are intact.
  • 2. Test blower motor: Spin the blower wheel by hand; if stiff or seized, replace the blower. A qualified person can test the motor with direct power.
  • 3. Inspect thermal protector: Some blowers have an internal thermal fuse or protector. If it has opened due to overheating, the blower will not run and must be replaced.
  • 4. Control board output: If the blower is good but never receives power, the control board blower relay may be defective and require board replacement.
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Repair Difficulty

Hard 4/5

Required Part

Convection Blower Assembly
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