E7 Igniter circuit fault

What the control is telling you

The control found a problem in the igniter circuit. Furnace will not run. ComfortNet thermostat shows IGNITER FAULT E7.

Applies to: GMVC95/AMVC95 upflow and *CVC9 counterflow two-stage furnaces

Likely causes

• Igniter wiring loose or wrong
• Shorted igniter
• Poor unit ground
• Igniter relay failed on the control

Test and repair steps

1. Safety turn power off before working on the control or wiring.
2. Check the wiring from the control to the igniter.
3. Check the igniter resistance. Replace a shorted igniter with the correct part.
4. Check the furnace ground wiring.
5. If wiring, igniter and ground are good, check for igniter voltage from the control. No output = replace the control.

Settings for these units

• Normal status displays (7-segment) · Goodman/Amana GM9S96/AM9S96
• Normal status displays (7-segment) · Goodman/Amana GM9S80/AM9S80
• Normal status displays (7-segment) · Goodman/Amana GM9C96/AM9C96
• Minimum recommended filter size · Goodman/Amana GM9C96/AM9C96

Models that show this code

10 models in Goodman/Amana *MVC95/*CVC9 two-stage ComfortNet

Other codes on the same units

• E1 Low-stage pressure switch closed at start of heat
• E2 Low-stage pressure switch will not close
• E3 High limit or rollout limit open
• E4 Flame sensed with no call for heat
• E5 Control fuse open
• E6 Low flame signal
• E8 High-stage pressure switch closed at start of heat
• E9 High-stage pressure switch will not close