Goodman HVAC Error Code 8 Flash: How to Fix It

Q: What does Goodman 8 flash error code mean?

The 8 flash error code on a Goodman furnace indicates an igniter circuit fault, typically caused by a failed hot surface igniter (HSI) or damaged wiring in the igniter circuit.

Q: How much does it cost to replace a Goodman hot surface igniter?

A replacement hot surface igniter typically costs $30-80 for the part. Professional installation usually adds $100-200 in labor costs, making the total repair cost $130-280.

Q: Can I run my Goodman furnace with a bad igniter?

No, you cannot run your furnace with a faulty igniter. The safety system will prevent gas flow when the igniter circuit fails, and the furnace will not produce heat until the igniter is repaired or replaced.

Q: How long do Goodman hot surface igniters last?

Goodman hot surface igniters typically last 3-7 years depending on usage, furnace cycling frequency, and environmental conditions. Frequent on/off cycling can reduce their lifespan.

Q: Why does my Goodman igniter keep failing?

Common causes of repeated igniter failure include voltage problems, dirty burner flames causing overheating, improper igniter installation, poor electrical connections, or an oversized gas orifice causing flame impingement on the igniter.

Abstract

The Goodman 8 flash error code indicates an igniter circuit fault, specifically with the hot surface igniter (HSI) system. This error prevents your furnace from lighting properly and requires immediate attention to restore heating function.