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Goodman gas furnace code E19: Onboard return air sensor unplugged
Gas furnace, Canada and United States
The return air temperature sensor on the control board reads as unplugged, so its reading is missing from the CoolCloud app.
This needs a licensed gas technician. There is nothing safe to check yourself. Leave the covers on and book a professional.
Only some models show this code. Check the list below.
What causes it
-
Damage to the sensor on the control board. A technician cycles the power, allows up to 90 seconds for the sensors to be detected, and replaces the board if needed.
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
88 models in 6 ranges
| Range | Models |
|---|---|
| GMVC80 / GCVC80 / AMVC80 / ACVC80 | GMVC800603BN, GMVC800603BX, GMVC800604BN, GMVC800604BX, GMVC800803BN, GMVC800804CN, GMVC800804CX, GMVC800805CN, GMVC800805CX, GMVC800805DN, GMVC800805DX, GMVC801005CN, GMVC801005CX, AMVC800603BN, AMVC800603BX, AMVC800604BN, AMVC800604BX, AMVC800803BN, AMVC800804CN, AMVC800804CX, AMVC800805CN, AMVC800805CX, AMVC800805DN, AMVC801005CN, AMVC801005CX |
| 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 |
| GMVM97 / GCVM97 / AMVM97 / ACVM97 | GMVM970603BN, GMVM970803BN, GMVM970804CN, GMVM971005CN, GMVM971205DN, AMVM970603BN, AMVM970803BN, AMVM970804CN, AMVM971005CN, AMVM971205DN |
| 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 47
- GRVT80/GDVT80 gas furnace installation instructions (IOG-2043B) , page 36
Checked against the manufacturer's manual on 13 October 2026.
Other Goodman gas furnace codes
| Code | Meaning | What you can do |
|---|---|---|
| E1A | Onboard return air sensor shorted | Call a pro |
| E10 | Grounding fault or poor neutral connection | Call a pro |
| E11 | Rollout switch open | Call a pro |
| E15 | External return air sensor circuit open | Call a pro |
| E16 | External return air sensor circuit shorted | Call a pro |
| E17 | Supply air sensor circuit open | Call a pro |
| E18 | Supply air sensor circuit shorted | Call a pro |
| EA | Reversed polarity or poor ground | Call a pro |
| EA0 | R-32 refrigerant leak detected | Safe checks first, then a pro |
| EA1 | R-32 refrigerant sensor fault | Safe checks first, then a pro |
| EA2 | A2L relay fault on the control board | Safe checks first, then a pro |
| EAF | Lost communication with the R-32 refrigerant sensor | Safe checks first, then a pro |
See all temperature sensor fault codes on gas furnaces across brands.