Display shows H1 and temperature reading is extremely high or stuck at maximum

Safety first: Allow the grill to cool and unplug it before inspecting wiring.

• Step 1 – Inspect RTD probe wiring: Locate the RTD probe cable and check for spots where the two conductors may be touching or where bare wire is exposed and contacting the grill body.
• Step 2 – Dry connectors: Disconnect the RTD from the control board and inspect the connector for moisture or corrosion. Dry thoroughly and clean with electrical contact cleaner if needed.
• Step 3 – Isolate the fault: With the RTD disconnected, power on the grill. If the H1 code clears or the temperature reads error instead of max, the RTD is likely shorted and should be replaced.
• Step 4 – Replace RTD or controller: Install a new RTD temperature probe if wiring damage is found. If a new probe does not resolve the H1 error, the control board's temperature input circuit may be defective and require replacement.