Status LED on Amana furnace control board is solid ON with no flashing pattern, but furnace does not operate correctly.

Safety: Turn off power before handling thermostat wiring.

• Verify thermostat mode: Ensure thermostat is set to HEAT and temperature is above room temperature.
• Check thermostat batteries: Replace batteries if display is dim or blank.
• Bypass thermostat (test only): At the furnace control board, briefly jumper R to W with a small piece of wire. If the furnace starts, the issue is with the thermostat or its wiring.
• Inspect thermostat cable: Look for damage along the run from furnace to thermostat.

If the furnace does not respond even when R and W are jumpered, the control board or safety circuit may be at fault and should be checked by a technician.