Strong chemical or electrical burning smell from controller area during operation.

Safety first: Immediately unplug the grill if you smell burning plastic or insulation. Do not continue to operate until inspected.

Steps to investigate burning smell:

• Visual inspection: After the grill cools, remove the controller and access panels. Look for discolored, melted, or charred wires and connectors.
• Check wire routing: Ensure wiring harnesses are not touching the firebox, exhaust, or other high-heat areas. Re-route and secure with high-temp cable ties if needed.
• Tighten connections: Gently check that all spade and plug connections are fully seated. Loose connections can overheat.
• Inspect controller board: Look for burned components or darkened areas on the PCB. If present, replace the controller assembly.
• Replace damaged wiring: Any melted or brittle wires should be replaced with equivalent high-temperature rated wire and proper connectors.

Warning: Do not ignore electrical burning smells; they can precede fire or complete failure. If you are not comfortable inspecting wiring, contact a qualified technician.