Amana 12 Flashes

What does Amana 12 Flashes mean?

Twelve red flashes indicate an inducer relay fault, and the furnace is not operating. The control cannot drive the induced draft blower correctly. Causes include improperly connected inducer wiring, improper grounding, a bad inducer, a blockage in the inducer or vent, or a faulty integrated control module.

Symptoms

• Furnace not operating
• Integrated control module diagnostic LED flashes twelve red flashes
• Induced draft blower does not run correctly
• Ignition sequence does not begin

Common causes

• Inducer relay fault on the integrated control module
• Improperly connected inducer wiring or improper grounding
• Bad inducer or blockage in the inducer and vent
• Poor unit ground
• Faulty integrated control module

Diagnostic steps

1. 01

   Check the inducer wiring

   Check and correct the wiring from the integrated control module to the inducer.

2. 02

   Check for blockage

   Check for blockage in the inducer and in the vent, and replace the inducer if it is bad.

3. 03

   Correct the ground

   Check and correct the unit ground wire to resolve improper grounding.

4. 04

   Replace the control module

   Replace the integrated control module if it is bad after the wiring, inducer, and ground are verified.

5. 05

   Power off before servicing

   Turn power off prior to repair and read the electrostatic discharge precautions before handling the control module.

When to call a professional

An inducer relay fault can stem from the blower, the wiring, vent blockage, or the control board, and isolating the cause requires electrical testing. If correcting the wiring, grounding, and any blockage does not clear the twelve-flash code, have a qualified servicer confirm whether the inducer or control module needs replacement. Turn power off prior to repair and follow electrostatic discharge precautions when handling the board.