Goodman
E10
LockoutGrounding error
IFC failed its ground check (sister to EEA).
Walk E10 in Diagnose
Sign in for the next measurement
First check
1 Hot and neutral at the IFC, not the disconnect
On Goodman GR9S96 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.