A P1 error or code appears, and the grill temperature swings widely at low settings.

Safety first: Ensure the grill is stable and cool before accessing the control panel.

• 1. Reset P-settings: Refer to the Tepro manual for restoring default P-settings (pellet feed timing). Typically, this involves holding specific buttons at power-on to reset to factory defaults.
• 2. Avoid extreme P-values: If your model allows manual P-adjustment, avoid setting P too low or too high for ambient conditions. Start with the default and adjust only one step at a time.
• 3. Power cycle: Turn the grill off, unplug for 5 minutes, then plug it back in and reconfigure. This can clear minor firmware glitches.
• 4. Firmware/board replacement: If P1 or related feed errors persist and the grill cannot maintain stable temperature despite correct settings and clean mechanical components, the control board may need replacement.