Amana Failed Control Board Output

Furnace does not start when thermostat calls for heat, but LED shows normal and 24V is present.

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.

Possible Causes

Defective furnace control board, Burned relay contacts, Internal board short

Safety: Turn off power before replacing the control board.

Verify call for heat: Confirm 24V between W and C at the control board when thermostat calls for heat.
Check inducer and blower outputs: If the board is not sending 120V to the inducer or blower when commanded, the board is likely faulty.
Inspect board for damage: Look for burnt traces, swollen components, or corrosion.

Control board replacement should follow Amana wiring diagrams and static precautions.

Hard 4/5

Furnace Control Board

Check Price on Amazon

We may earn a commission from links on this page.