Safety first: Turn OFF and unplug the grill before accessing the control board.

Verify sensor integrity: Confirm that the grill temperature sensor (RTD) is correct for your Enders model and is functioning (stable resistance, no shorts). Replace if questionable.
Inspect wiring routing: Ensure sensor wires are routed away from high-voltage lines and motors to minimize electrical interference. Secure loose cables.
Reset controller: If your Enders controller supports a factory reset, perform it according to the manual to clear any corrupted settings.
Firmware update: Some newer Enders pellet grills allow firmware updates via USB or app. Check Enders support resources for an updated firmware that addresses temperature control issues.
Replace control board: If overshoot and Er14 persist, install a new Enders main control board matched to your grill model. Transfer all connectors one at a time to avoid miswiring.

After replacement, run a test cook at low and high temperatures to confirm stable regulation.

Er14 displayed; grill temperature overshoots significantly and then cycles off and on erratically.

Possible Causes