Amana Furnace Light Blinking? Count the Flashes
Watch the light through the sight glass in the lower panel: it flashes a count, pauses, and repeats. That count is the diagnosis. (Amana and Goodman are the same family under the cabinet, so the dialect below matches most of both brands.)
Safety first, every page: if you smell gas, don't reset anything — leave the house and call your gas company from outside.
Before you touch anything
- Write down the count and your model number (sticker inside or near the upper panel). Cutting power wipes the code.
- Your furnace door's printed legend beats any website's chart — match the count there first. These are the common meanings across many models:
Common Amana flash codes
- 1 flash — ignition lockout: it tried to light several times and gave up. Often a dirty flame sensor. Many boards retry after an hour or after one power cycle.
- 2 flashes — pressure switch stuck closed. Pro call.
- 3 flashes — pressure switch open: can't prove the vent is drawing. Check the white PVC vent pipes outside for snow, ice, leaves, or nests — a genuinely free fix when that's the cause.
- 4 flashes — high limit tripped: overheating. Filter to the light — can't see through it, replace it, open blocked vents, wait 15 minutes.
- 5 flashes — flame sensed when gas should be off. Shut down and call.
- 7–9 flashes — blower or motor circuit trouble. Pro territory.
- Continuous rapid blink — often reversed polarity, common after electrical work. Electrician or HVAC pro.
- Steady on — normal.
Fix the free ones, reset once, then call smart
Outdoor pipes and the filter cover the two codes homeowners can usually fix themselves. Reset once — power switch off 30 seconds, on. If the same code returns, stop resetting: you have the code and model number, which is exactly what a good shop wants to hear first.
Related symptoms
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