E20 displayed and unit reports temperature sensor fault (on models with inlet temperature monitoring)

Safety first: Turn off power before handling the sensor wiring.

• Locate sensor: Find the temperature probe on the inlet side of the Lindsay valve or in a nearby well.
• Check seating: Ensure the probe is fully inserted and secured in its well or clamp.
• Inspect cable: Look for cuts, abrasions, or rodent damage along the sensor cable. Reseat the connector at the board.
• Replace sensor: If E20 persists, install a new Lindsay temperature sensor of the same type and rating.