LOW URGENCY

Goodman 7 Flashes — Low Flame Signal

7 flashes

Weak flame sensor signal — usually a dirty sensor.

Brand: Goodman (Also covers Amana, Daikin) | Equipment: Gas Furnace

What This Code Means

7 flashes means the flame sensor signal is weaker than expected. Often a precursor to full ignition lockout.

Likely Causes (Ranked)

Most common (~80%)

Dirty flame sensor

What: Buildup weakens signal.

How to check: Pull and inspect.

Fix: Clean with emery cloth.

Shop parts

Common

Weak igniter

What: Slow ignition produces unstable flame.

How to check: Watch glow brightness.

Fix: Replace igniter.

Shop parts

Less common

Gas pressure issue

What: Low pressure produces weak flame.

How to check: Tech measures manifold pressure.

Fix: Adjust regulator.

Diagnostic Steps

Clean flame sensor
Watch flame quality
Replace igniter if needed
Call tech for pressure issues

Frequently Asked Questions

How urgent is Goodman 7 flashes?

Not critical, but address soon — often progresses to lockout.

DIY?

Yes — flame sensor cleaning is 5-minute job.

Same on Amana?

Yes.

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Need More Help?

Try our interactive symptom diagnostic tool or browse Goodman parts.

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