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CRITICAL URGENCY

Goodman 6 Flashes — Roll Out Switch Open (SAFETY)

6 flashes

Flame rollout switch tripped — get a CO safety inspection before reset.

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

SAFETY: Cracked heat exchanger releases carbon monoxide. CO is odorless and colorless. Evacuate and call 911 if anyone has headache, dizziness, nausea, or confusion.

What This Code Means

6 LED flashes on a Goodman (Amana, Daikin) furnace means the flame rollout switch has opened. Combustion gases or flames are escaping the burner enclosure — a serious combustion problem.

Likely Causes (Ranked)

Common and serious

Cracked heat exchanger

What: Crack causes pressure imbalance, flames push out.

How to check: Licensed tech inspection only.

Fix: Heat exchanger or furnace replacement.

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Common on 90%+ AFUE

Plugged secondary heat exchanger

What: Calcium/sediment buildup blocks condensate channels.

How to check: Tech inspection.

Fix: Service or replace.

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Common

Blocked flue/exhaust

What: Snow, ice, debris, or disconnected vent.

How to check: Inspect exhaust outlet.

Fix: Clear blockage.

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Less common

Failed inducer

What: Poor draft causes flame disruption.

How to check: Listen at startup.

Fix: Replace inducer.

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Diagnostic Steps

  1. STOP — don't keep resetting
  2. Shut off gas at furnace
  3. Verify CO detector working
  4. Call licensed HVAC tech

Frequently Asked Questions

Is Goodman 6 flashes the same as Amana?
Yes — sister brands using same control board.
Can I reset the rollout switch?
It has a manual reset, but resetting without addressing the cause is dangerous.
How long to fix?
4-8 hours labor if parts available. Most Goodman heat exchangers have lifetime warranty (parts).

Related Goodman Codes

Goodman Error Code 4 FlashesGoodman Error Code 3 Flashes

Related Symptoms

Furnace Smells GasFurnace Pilot Yellow Flame

Need More Help?

Try our interactive symptom diagnostic tool or browse Goodman parts.

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