State Outlet Temperature Sensor Error (Power Vent Models)

State electronic gas tank-type water heater LED flashes E8; unit may overheat or shut down.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Failed outlet thermistor, Loose sensor wiring, Scale buildup causing localized overheating

Safety: Turn off gas and power. Allow tank to cool.

Locate sensor: Find the outlet temperature sensor on the hot outlet or tank top.
Inspect wiring: Check for damaged wires and loose connectors. Reseat as needed.
Test sensor: Measure resistance and compare to State specs. Replace if out of range.
Flush tank: If heavy scale is suspected, perform a tank flush to remove sediment.

Medium 3/5

Outlet Temperature Sensor

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