American Standard Blower Motor Overload or Control Issue

Furnace blower starts but stops after a few seconds, then tries again repeatedly

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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

Seized blower motor bearings, Incorrect motor replacement with wrong HP, Failed blower capacitor, Faulty ECM motor module on American Standard variable-speed furnace

How to Fix / Troubleshooting

Safety: Turn off power before working on blower.

  • Spin blower wheel by hand:
    • It should rotate freely; stiffness indicates bad bearings.
  • Test capacitor (PSC motors):
    • Replace if out of spec.
  • ECM motors:
    • Inspect motor module for burn marks; replacement usually required if faulty.
  • Blower motor replacement is often best handled by a professional.
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Repair Difficulty

Hard 4/5

Required Part

Blower Motor
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