Amana

EEH

Lockout

Grounding error

IFC failed its ground check (sister to EA).

4 plates — walk the one on the cabinet

First check

1 Hot and neutral at the IFC, not the disconnect

On Amana AR9S80 polarity/ground is measured at the board. A correctly landed disconnect with a swapped whip at the IFC still throws this. Green ground to cabinet and IFC. Painted screw, missing star washer.

Expect: L1 hot, N neutral, ~120 VAC L1 to N, ~0 VAC N to ground.

The rest of the walkthrough is Diagnose.

On the plates

Green ground to cabinet and IFC.
Painted screw, missing star washer.
Green ground to cabinet and IFC. Painted screw, missing star washer.

Plates that use EEH

AR9S80
Single-stage · 9-speed ECM · 80% AFUE · Cat I metal vent
Diagnose AR9S80 — Sign in
AR9S96
Single-stage · 9-speed ECM · 96–97% AFUE · R-32 capable
Diagnose AR9S96 — Sign in
AR9T80
Two-stage · 9-speed ECM · 80% Cat I
Diagnose AR9T80 — Sign in
AR9T96
Two-stage · 9-speed ECM · 96–97% AFUE · R-32 capable
Diagnose AR9T96 — Sign in

Same number, other makers

EEH on Amana is not the same code on these plates.

Goodman EEHGrounding error