Grill temperature swings widely (e.g., 50–75°F up and down) during a cook.

Safety first: Keep hands clear of hot surfaces when checking the RTD during operation.

• 1. Clean RTD:
  • With the grill cool, gently wipe the RTD probe with a damp cloth to remove buildup.
• 2. Check lid seal and gaps:
  • Inspect the lid for warping or large gaps that allow wind to blow directly on the RTD.
  • Install high-temp gasket material if needed to improve sealing.
• 3. Avoid frequent lid opening:
  • Each lid opening causes a temperature drop and controller overcorrection.
• 4. Compare with independent thermometer:
  • Place a secondary thermometer near the RTD to see if swings are real or sensor-related.
  • If the RTD readings are erratic compared to the reference, replace the RTD.