Royal Gourmet Temperature Overshoot and Oscillation

Grill temperature overshoots setpoint by 50°F or more and then drops below setpoint repeatedly.

Possible Causes

Aggressive control algorithm on Royal Gourmet board, Incorrect P-setting, Poor thermal mass in cook chamber, RTD probe placement near hot spot

How to Fix / Troubleshooting

Safety first: Adjust settings from the control panel without touching hot surfaces.

Steps to stabilize temperature:

Adjust P-setting: Lower the P-setting or equivalent to reduce pellet feed during idle.
Relocate probe (if possible): If your model allows, move the RTD probe away from direct radiant heat.
Add thermal mass: Place a pizza stone or cast iron pan in the grill to help buffer temperature swings.
Monitor with external thermometer: Use a reliable probe to verify improvements after each change.

Repair Difficulty

Easy 2/5