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Goodman gas furnace code EEd: Auxiliary limit switch open (blower compartment)
Gas furnace, Canada and United States
The auxiliary limit switch in the blower compartment is open, and the furnace does not run.
This needs a licensed gas technician. There are a few safe checks you can do first, marked below. Anything inside the unit is a job for a professional.
Only some models show this code. Check the list below.
What causes it
-
Not enough air across the heat exchanger because of blocked filters, restrictive ductwork, the wrong blower speed or a failed blower motor.
Check and replace the furnace air filterYou can do this
- Turn off the electrical power to the furnace before you take the filter out. Never run the furnace without a filter in place.
- Find the filter. It sits outside the furnace cabinet, in a return air grille, a filter rack on the side of the furnace, or the duct next to it. If you cannot find or reach it, ask your installer.
- Replace a dirty disposable filter with one of the same size that meets UL900 or CAN/ULC-S111. Wash and dry a permanent filter the way its maker describes.
- Fit the filter so the air flows through it in the same direction as before, then turn the power back on.
- Check the filter at least once a month and clean or replace it when it is dirty. A dirty filter is the most common cause of a furnace not working properly.
Clear blocked supply and return grillesYou can do this
- Go round the house and look at every supply register and return air grille.
- Move furniture, curtains, clothes, rugs or anything else that covers or blocks them.
- Turn off the electrical power to the furnace before you take the filter out.
-
The 115 V power was shut off during a heating cycle.
-
Loose or wrongly connected wiring.
How to read this code on your unit
The code shows on the three-character display on the furnace control board, which you can see through the sight glass on the blower compartment. IdL means the furnace is idle and normal. A blank display means the board has no power or has failed.
Booking a licensed gas technician
Book a licensed gas technicianlicensed gas technician
- Turn the unit off and leave the covers on. Gas components must only be serviced by a licensed technician.
- Note the code, how often it appears, and the model and serial numbers from the rating label.
- Book a licensed gas technician and give them those details.
Models that show this code
81 models in 5 ranges
| Range | Models |
|---|---|
| GMVC8 / GCVC8 / AMVC8 / ACVC8 | GMVC80603BN, GMVC80603BX, GMVC80604BN, GMVC80604BX, GMVC80803BN, GMVC80803BX, GMVC80804CN, GMVC80804CX, GMVC80805CN, GMVC80805CX, GMVC80805DN, GMVC80805DX, GMVC81005CN, GMVC81005CX, AMVC80603BN, AMVC80603BX, AMVC80604BN, AMVC80604BX, AMVC80803BN, AMVC80803BX, AMVC80804CN, AMVC80804CX, AMVC80805CN, AMVC80805CX, AMVC80805DN, AMVC80805DX, AMVC81005CN, AMVC81005CX |
| GMVC96 / GCVC96 / AMVC96 / ACVC96 | GMVC960403BN, GMVC960603BN, GMVC960803BN, GMVC960804CN, GMVC961005CN, GMVC961005DN, GMVC961205DN, GCVC960403BN, GCVC960603BN, GCVC960804CN, GCVC961005CN, GCVC961205DN, AMVC960403BN, AMVC960603BN, AMVC960803BN, AMVC960804CN, AMVC961005CN, AMVC961005DN, AMVC961205DN, ACVC960403BN, ACVC960603BN, ACVC960804CN, ACVC961005CN, ACVC961205DN |
| GRVM97 / GDVM97 | GRVM970603BN, GRVM970803BN, GRVM970804CN, GRVM971005CN, GRVM971205DN |
| GRVT80 / GDVT80 | GRVT800603BN, GRVT800603BX, GRVT800604BN, GRVT800604BX, GRVT800803BN, GRVT800804CN, GRVT800804CX, GRVT800805CN, GRVT800805CX, GRVT800805DN, GRVT800805DX, GRVT801005CN, GRVT801005CX, GDVT800603BX, GDVT800803BX, GDVT800805CX, GDVT801005CX |
| GRVT96 / GDVT96 | GRVT960403BN, GRVT960603BN, GRVT960803BN, GRVT960804CN, GRVT961005CN, GRVT961005DN, GRVT961205DN |
Where this comes from
- GMVC96/GCVC96 (revisions BA to BC) gas furnace installation instructions (IOG-2015L) , page 49
- GRVT80/GDVT80 gas furnace installation instructions (IOG-2043B) , page 37
- Gas furnace user's information manual (HIG-2002A) , page 8
Checked against the manufacturer's manual on 13 October 2026.
Other Goodman gas furnace codes
| Code | Meaning | What you can do |
|---|---|---|
| E3 | Overheat (depends on model) | Safe checks first, then a pro |
| E11 | Rollout switch open | Call a pro |
| Ed | Manual-reset rollout switch open | Call a pro |
| EE3 | Primary limit switch open | Safe checks first, then a pro |
| EEb | Gas valve not powered when it should be | Call a pro |
| EEC | Gas valve powered when it should be off | Safe checks first, then a pro |
| EEE | Internal control board fault | Call a pro |
| EEF | Auxiliary (condensate) switch open | Call a pro |
| 4 red flashes | Overheat (depends on model) | Safe checks first, then a pro |
| 5 red flashes | Sensor fault or overheat (depends on model) | Safe checks first, then a pro |
| 6 red flashes | Overheat / flue or venting fault (depends on model) | Depends on your model |
| 11 red flashes | Ignition failure or overheat (depends on model) | Call a pro |
See all overheat codes on gas furnaces across brands.