EE4 Flame sensed with no call for heat

What the control is telling you

The control sees a flame signal when the gas valve should be closed. The inducer and circulator blower run continuously and the furnace will not operate.

Applies to: Goodman/Amana/GMC gas furnaces, 9-speed ECM, 7-segment control. Two-stage 96%: AC9C96, AM9C96, GC9C96, GM9C96. Single stage 80%: VC9S80, VM9S80, AC9S80, AM9S80, GC9S80, GM9S80. Single stage 92/96%: VC9S96, VM9S96, AC9S96, AM9S96, AM9S92, GC9S96, GM9S96, GM9S92

Likely causes

• Short to ground in the flame sensor or its wiring
• Lingering burner flame
• Gas valve closing slowly or leaking through

Test and repair steps

1. Warning: if a flame is actually present with no call for heat, shut the manual gas valve immediately.
2. Look into the burner compartment if there is no flame, the signal is false - check the flame sensor wire and insulator for a short to ground and repair it.
3. If a flame lingers after the call ends, the gas valve is not closing properly - replace the gas valve.
4. After repair, cycle power and confirm the inducer and blower stop at the end of the post-purge and fan-off delay.

Settings for these units

Normal status displays (7-segment) · Goodman/Amana GM9S96/AM9S96

These are normal operating displays, not fault codes.

Normal status displays (7-segment) · Goodman/Amana GM9S80/AM9S80

These are normal operating displays, not fault codes.

• Normal status displays (7-segment) · Goodman/Amana GM9C96/AM9C96
• Minimum recommended filter size · Goodman/Amana GM9C96/AM9C96

Models that show this code

80 models in Goodman/Amana GM9S96/AM9S96, Goodman/Amana GM9S80/AM9S80, Goodman/Amana GM9C96/AM9C96

Other codes on the same units

• EE0 Lockout - too many ignition retries (3)
• EE1 Pressure switch closed at start of heating cycle
• EE2 Pressure switch did not close (inducer runs, no ignition)
• EE3 High (primary) limit open
• EE5 Open fuse (short in low voltage wiring)
• EE6 Low flame signal
• EE8 High-stage pressure switch closed at start of heating cycle
• EE9 High-stage pressure switch did not close