Z Grills Temperature Overshoot / Excess Pellet Feed

Grill overshoots set temperature by 50°F or more and struggles to come back down.

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Possible Causes

P-setting too low (high feed) for conditions, Control board algorithm issue, RTD probe coated in heavy grease causing lag

How to Fix / Troubleshooting

Safety first: Use heat-resistant gloves when adjusting anything on a hot grill.

Steps to mitigate:

  • Clean RTD probe: Inside the cook chamber, gently clean the RTD temperature sensor with a non-abrasive pad to remove grease buildup that can slow response.
  • Adjust P-setting: Increase the P number (e.g., from P2 to P4) to reduce pellet feed in smoke mode and minimize overshoot.
  • Avoid frequent lid opening: Opening the lid causes the controller to feed more pellets, which can lead to overshoot when closed again.
  • Verify exhaust flow: Ensure the chimney cap is properly adjusted and not trapping excessive heat.
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Repair Difficulty

Very Easy 1/5

Required Part

RTD Temperature Sensor Probe
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