Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater BURNER DEBRIS Error Fix: Burner Tray Obstruction

Error code BURNER DEBRIS on the Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater means: Burner Tray Obstruction. Debris has accumulated in the burner tray or burner orifices. Outdoor pool heaters are especially vulnerable to spider webs, mud dauber wasp nests, leaves, and other debris entering the combustion chamber through the exhaust vent or combustion air intake. Symptoms include ignition failure (E01), yellow or lazy flames (incomplete combustion), sooting, or flame rollout (r13/r14). Remove the front access panel and inspect the burner tray. Clean burner orifices with a thin wire or compressed air. Remove any nests or webs. Installing a pest guard on the exhaust vent termination helps prevent recurrence.

The most successful fix is "Inspect and Replace Burner Orifices and Pest Guard" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated warning severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Inspect and Replace Burner Orifices and Pest Guard") is rated medium difficulty and takes about 45 minutes. Tools needed: Phillips screwdriver, Adjustable wrench, Thin wire, Socket set.

DIY cost: $10-$20. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

The Pentair Pentair MasterTemp 400,000 BTU Gas Pool/Spa Heater has 8 other known error codes, including: AFS (Air Flow Switch Fault), AGS (Auto Gas Shutoff), bd (Board Error), BYPASS VALVE (Bypass Valve Adjustment Needed), CF (Combustion Fan Fault), and 3 more.