Amana AMVM970803BN Error Code None: No Power to Control Module

What Does Code None Mean?

When your Amana AMVM970803BN shows no display at all on the integrated control module, it means the board is receiving no electrical power. The 7-segment LED display should always show something when the furnace has power, so a blank display is a clear sign of a power interruption.

The furnace requires both 115V line power and 24V transformer power to operate. A tripped circuit breaker, a blown fuse, or a turned-off furnace power switch are the most common reasons for total power loss. In some cases, the power switch on the furnace itself may have been accidentally bumped to the OFF position during maintenance or storage.

If power is confirmed at the breaker and the furnace switch is on but the display remains blank, the problem may be with the 24V transformer or the integrated control module itself. These components require professional diagnosis and replacement.

Common Causes

How to Fix It: Restore Power to the Furnace

What You'll Need

• Flashlight

Steps

1. Turn off the furnace power switch and shut off the gas supply valve Before inspecting anything, locate the furnace power switch (usually on or near the furnace) and turn it OFF. Turn the gas shutoff valve to the OFF position (perpendicular to the gas pipe). If you smell gas at any point, leave your home immediately and call your gas company from outside.
2. Check the circuit breaker Go to your electrical panel and find the breaker labeled for the furnace or HVAC system. If it is in the tripped position (between ON and OFF), flip it fully to OFF first, then back to ON. A breaker that repeatedly trips indicates a deeper electrical problem — do not keep resetting it.
3. Check the furnace power switch Locate the power switch on or near the furnace. It often looks like a standard light switch and may be mounted on the side of the furnace or on a nearby wall. Make sure it is in the ON position.
4. Inspect for a blown fuse Some furnaces have an inline fuse on the control board or in the power circuit. With the power switch OFF, open the furnace access panel and look for a small glass or blade-style fuse. If the fuse appears blackened or the filament is broken, note the amperage rating. Do not replace it until a technician has identified why it blew.
5. Restore power and gas, then test Turn the gas supply valve back to the ON position (parallel to the pipe). Flip the furnace power switch to ON and verify the circuit breaker is ON. The 7-segment LED display on the integrated control module should illuminate. Set your thermostat to call for heat and confirm the furnace responds.

When to Call a Professional

Contact a licensed HVAC technician if:

• The circuit breaker trips again immediately after resetting
• The breaker is ON and the furnace switch is ON, but the display remains blank
• You find a blown fuse on the control board
• You suspect a problem with the 24V transformer or wiring
• The integrated control module appears damaged or shows signs of burning

✓ Verified against manufacturer service manual — March 2026