Display shows P1 and grill struggles to reach set temperature, especially in cold or windy conditions.

Note: P1 is typically a configuration/operating parameter, not a fault, but incorrect settings can cause performance issues.

Step-by-step adjustments:

• 1. Verify P-setting: Check the controller manual for how to view and adjust the P-setting. P1 is a low feed rate; in cold or windy weather, a higher P-setting (e.g., P3–P5) may be needed.
• 2. Adjust P-setting: Increase the P-setting one step at a time and allow 15–20 minutes for the grill to stabilize. Monitor temperature response.
• 3. Shield from wind: Move the grill to a more sheltered location or use a windbreak. Wind can strip heat from the cook chamber.
• 4. Use a thermal blanket: For winter use, install a Grilla Grills thermal blanket designed for your model to improve heat retention.
• 5. Confirm pellet quality: Use dry, hardwood pellets. Wet or low-quality pellets burn cooler and inconsistently.

When to call a technician: If the grill still cannot reach temperature with appropriate P-settings and good pellets, there may be an underlying hardware issue (igniter, fan, or control board) that needs professional diagnosis.