GE electric water heater shows E9 and may shut down for safety.

Safety: Turn OFF power at the breaker. Do not restore power until the fault is corrected.

Steps to address E9:

• Inspect for moisture: Check the top junction box and wiring compartments for water intrusion. Dry thoroughly and correct any source of leaks.
• Test elements to ground: With wires removed from each element, measure resistance from each terminal to the metal tank. Any reading other than infinite resistance indicates a ground fault; replace the element.
• Check wiring: Inspect all internal wiring for nicks, cuts, or melted insulation contacting the tank or metal parts. Repair or replace damaged wires.
• Control board: If no ground faults are found but E9 persists, the ground fault detection circuit on the control board may be defective and require replacement.