Goodman Error Code EE8: High-stage pressure switch closed at start of heating cycle (Furnace)
Goodman error code EE8 on a furnace means: High-stage pressure switch closed at start of heating cycle. It is also called Goodman diagnostic code EE8.
Homeowner? What Goodman code EE8 means for you
Check, then call Your furnace is reporting: High-stage pressure switch closed at start of heating cycle. This is often caused by something simple. Try the safe checks below; if the code returns, book a service call before it turns into a no-heat or no-hot-water emergency.
Safe things you can check yourself
- Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
- Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
- Make sure the furnace front door or panel is closed properly; many furnaces will not run with the door switch open.
- Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
- Outside, make sure the intake and exhaust pipes or vent cap are not blocked by snow, ice, leaves or a nest.
- Check that the gas valve next to the furnace is open (handle in line with the pipe). Do not force it.
- Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.
Call (647) 657-2977Book a service call
Licensed technicians serving Vaughan, Toronto and the GTA.
What does Goodman error code EE8 mean?
On a two-stage furnace the high-stage pressure switch circuit is already closed at the start of a heat call. The furnace runs on low stage only (inducer still operates). Flowcharts call this code E8.
Applies to: Goodman/Amana two-stage 96% furnaces GM9C96, GC9C96, AM9C96, AC9C96
Common causes of Goodman code EE8
- High-stage pressure switch contacts stuck closed
- Short in the pressure switch circuit wiring
Goodman models that use code EE8
AC9C96AM9C96AM9C960303ANGC9C96GM9C96GM9C960303AN
Other Goodman Furnace codes
All Goodman Furnace error codes →
Goodman code EE8: homeowner questions
What does Goodman code EE8 mean?
High-stage pressure switch closed at start of heating cycle. On a two-stage furnace the high-stage pressure switch circuit is already closed at the start of a heat call. The furnace runs on low stage only (inducer still operates). Flowcharts call this code E8.
Is it safe to keep using my furnace with code EE8?
It depends on the cause. This is often caused by something simple. Try the safe checks below; if the code returns, book a service call before it turns into a no-heat or no-hot-water emergency.
Can I reset Goodman code EE8 myself?
You can try one reset (power off for 30 seconds, then on). If Goodman code EE8 comes back, the cause is still there and a licensed technician should check it.
Who can fix Goodman code EE8 near me?
Aurora Star Tech Inc. repairs Goodman furnaces in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Homeowner help: Furnace Not Turning On: What to Check · Furnace Blinking Light: What the Flash Codes Mean
Troubleshooting guides
- Blowing cold air All brands · Furnace
- No heat All brands · Furnace
- Short cycling All brands · Furnace
- Control display blank, furnace dead - Goodman/Amana 9-speed ECM furnaces Goodman · Furnace
- No heat - Goodman/Amana 9-speed ECM furnaces Goodman · Furnace
- Poor combustion / flame problems - Goodman/Amana GM9C96 Goodman · Furnace
Source: Goodman RS6612020r1 (GM9C96/GC9C96/AM9C96/AC9C96 service), 2 Stage Troubleshooting Codes, p.36; Error Code E1, E2 flowchart p.40. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.