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Goodman gas furnace code EEC: Gas valve powered when it should be off

Gas furnace, Canada and United States

The gas valve is powered when it should be off (an internal gas valve error), 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.

This involves the gas supply or burner. Only a licensed technician should open the unit or work on gas parts.

What causes it

9 series three-character display (GM9S, GM9C, GR9S, GR9T)

  1. The gas valve circuit is miswired or its wiring is shorted.

    Shut off the gas to the furnace, then the powerYou can do this

    1. Close the manual gas shut-off valve on the gas pipe outside the furnace first.
      If you smell gas, do not touch any electrical switch, do not use a phone in the building and do not try to light anything. Leave and call your gas supplier from a neighbour's phone.
    2. Only then turn off the electrical power to the furnace. Goodman says to shut the gas first whenever the furnace overheats or the gas does not shut off.
    3. Leave the furnace off and book a qualified servicer.

    Book a licensed gas technician

  2. The gas valve relay on the control board is stuck, and the control board is replaced.

    Same check as above: Shut off the gas to the furnace, then the power

    Book a licensed gas technician

ComfortBridge three-character display (GMVC96, GMVM97, GMVC8, GMVC80, GRVT, GRVM)

  1. The gas valve circuit is miswired or its wiring is shorted.

    Same check as above: Shut off the gas to the furnace, then the power

    Book a licensed gas technician

  2. If the wiring and harness are sound, the control board is faulty and is replaced.

    Same check as above: Shut off the gas to the furnace, then the power

    Book a licensed gas technician

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

  1. Turn the unit off and leave the covers on. Gas components must only be serviced by a licensed technician.
  2. Note the code, how often it appears, and the model and serial numbers from the rating label.
  3. Book a licensed gas technician and give them those details.

Models that show this code

285 models in 17 ranges
RangeModels
GM9C80 / GC9C80 / AM9C80GM9C800403AN, GM9C800403AX, GM9C800603AN, GM9C800603AX, GM9C800603BN, GM9C800603BX, GM9C800803BN, GM9C800803BX, GM9C800804BN, GM9C800804BX, GM9C800804CN, GM9C800804CX, GM9C800805CN, GM9C800805CX, GM9C800805DX, GM9C801004CN, GM9C801005CN, GM9C801005CX, GM9C801205DN
GM9C96 / GC9C96 / AM9C96GM9C960303AN, GM9C960403AN, GM9C960603AN, GM9C960603BN, GM9C960803BN, GM9C960804CN, GM9C961004CN, GM9C961005CN, GM9C961205DN, GC9C960403BN, GC9C960603BN, GC9C960803BN, GC9C961005CN
GM9S80 / GC9S80 / AM9S80 / AC9S80GM9S800403AN, GM9S800403AX, GM9S800603AN, GM9S800603AX, GM9S800603BN, GM9S800603BX, GM9S800604BN, GM9S800604BX, GM9S800803BN, GM9S800803BX, GM9S800804BN, GM9S800804BX, GM9S800804CN, GM9S800804CX, GM9S800805CN, GM9S800805CX, GM9S801005CN, GM9S801005CX, GM9S801205DN, AM9S800403AX, AM9S800603AX, AM9S800603BN, AM9S800604BX, AM9S800803BX, AM9S800804BX, AM9S800804CX, AM9S800805CX, AM9S801005CX, AM9S801205DX
GM9S92
GM9S96 / GC9S96 / AM9S96 / AC9S96GM9S960403AN, GM9S960603BN, GM9S960803BN, GM9S960804CN, GM9S960805CN, GM9S961005CN, GM9S961205DN, GC9S960403BN, GC9S960603BN, GC9S960804CN, GC9S961005CN, GC9S961205DN, AM9S960403AN, AM9S960603BN, AM9S960803BN, AM9S960804CN, AM9S960805CN, AM9S961005CN, AM9S961205DN
GR9S80 / GD9S80 / AR9S80GR9S800403AN, GR9S800403AX, GR9S800603AN, GR9S800603AX, GR9S800603BN, GR9S800603BX, GR9S800604BN, GR9S800604BX, GR9S800803BN, GR9S800803BX, GR9S800804BN, GR9S800804BX, GR9S800804CN, GR9S800804CX, GR9S800805CN, GR9S800805CX, GR9S801005CN, GR9S801005CX, GR9S801205DN, GD9S800403AN, GD9S800403AX, GD9S800603AN, GD9S800603AX, GD9S800804BN, GD9S800804BX, GD9S800805CX, GD9S801005CN, GD9S801005CX
GR9S92 / AR9S92GR9S920403AN, GR9S920603BN, GR9S920803BN, GR9S920804CN, GR9S920805CN, GR9S921004CN, GR9S921005CN, GR9S921205DN
GR9S96 / GD9S96 / AR9S96GR9S960403AN, GR9S960603BN, GR9S960803BN, GR9S960804CN, GR9S960805CN, GR9S961005CN, GR9S961205DN, GD9S960403BN, GD9S960603BN, GD9S960804CN, GD9S961005CN, GD9S961205DN, AR9S960403AN, AR9S960603BN, AR9S960803BN, AR9S960804CN, AR9S960805CN, AR9S961005CN, AR9S961205DN
GR9T80 / GD9T80GR9T800403AN, GR9T800403AX, GR9T800603AN, GR9T800603AX, GR9T800603BN, GR9T800603BX, GR9T800803BN, GR9T800803BX, GR9T800804BN, GR9T800804BX, GR9T800804CN, GR9T800804CX, GR9T800805CN, GR9T800805CX, GR9T800805DX, GR9T801004CN, GR9T801005CN, GR9T801005CX, GR9T801205DN, GD9T800403AX, GD9T800603AX, GD9T800603BX, GD9T800804BX, GD9T800805CX, GD9T801005CX
GR9T96 / GD9T96GR9T960303AN, GR9T960403AN, GR9T960603AN, GR9T960603BN, GR9T960803BN, GR9T960804CN, GR9T961004CN, GR9T961005CN, GR9T961205DN
GMVC8 / GCVC8 / AMVC8 / ACVC8GMVC80603BN, 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
GMVC80 / GCVC80 / AMVC80 / ACVC80GMVC800603BN, 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 / ACVC96GMVC960403BN, 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 / ACVM97GMVM970603BN, GMVM970803BN, GMVM970804CN, GMVM971005CN, GMVM971205DN, AMVM970603BN, AMVM970803BN, AMVM970804CN, AMVM971005CN, AMVM971205DN
GRVM97 / GDVM97GRVM970603BN, GRVM970803BN, GRVM970804CN, GRVM971005CN, GRVM971205DN
GRVT80 / GDVT80GRVT800603BN, GRVT800603BX, GRVT800604BN, GRVT800604BX, GRVT800803BN, GRVT800804CN, GRVT800804CX, GRVT800805CN, GRVT800805CX, GRVT800805DN, GRVT800805DX, GRVT801005CN, GRVT801005CX, GDVT800603BX, GDVT800803BX, GDVT800805CX, GDVT801005CX
GRVT96 / GDVT96GRVT960403BN, GRVT960603BN, GRVT960803BN, GRVT960804CN, GRVT961005CN, GRVT961005DN, GRVT961205DN

Where this comes from

Checked against the manufacturer's manual on 13 October 2026.

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Other Goodman gas furnace codes

Code Meaning What you can do
ECF Gas valve stepper motor communication error Call a pro
EE7 Igniter circuit problem Call a pro
EE8 High-stage pressure switch closed at start of heating Call a pro
EE9 High-stage pressure switch not closing Call a pro
EEA Reversed polarity or poor ground Call a pro
EEb Gas valve not powered when it should be Call a pro
EEd Auxiliary limit switch open (blower compartment) Safe checks first, then a pro
EEE Internal control board fault Call a pro
EEF Auxiliary (condensate) switch open Call a pro
EEH Twinning error Call a pro
1 red flash Ignition failure or gas valve fault (depends on model) Safe checks first, then a pro
10 red flashes Power supply problem or gas valve fault (depends on model) Depends on your model

See all gas valve fault codes on gas furnaces across brands.