Monument Grills Incomplete Combustion / Smoldering Pellets

Excessive white smoke and sooty buildup on food and inside grill

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Possible Causes

Restricted airflow from dirty firepot, Weak or failing combustion fan, Wet or low‑quality pellets, Overfilled firepot from excessive pellet feed

How to Fix / Troubleshooting

Safety first: Allow the grill to cool before cleaning. Avoid breathing heavy smoke directly.

  • Step 1 – Clean firepot thoroughly: Remove grates and drip tray. Vacuum all ash and pellets from the firepot and burn area.
  • Step 2 – Check fan operation: Confirm the combustion fan runs continuously during cooking and provides strong airflow.
  • Step 3 – Use dry, quality pellets: Discard any damp or crumbly pellets and refill with a high‑quality brand.
  • Step 4 – Avoid overloading: Do not manually add pellets to the firepot. Let the auger control feed rate.
  • Step 5 – Service fan or controller: If smoke remains thick and white despite cleaning and good pellets, the fan or control board may not be providing adequate air and should be inspected and replaced if necessary.
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Repair Difficulty

Easy 2/5

Required Part

Combustion Fan Motor
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