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Based on the factory troubleshooting matrix in the original manual, here are the three most common problems and their fixes.
: Keep the air intake grill (rear) and exhaust grill (front) completely free of obstructions to prevent a thermal cutoff event. Operating Instructions Turning the Heater On
The Patton POH2501 is a classic "bulletproof" heater known for its longevity. By keeping the unit clean, avoiding extension cords, and respecting the clearance distances, your Patton heater can provide reliable warmth for years to come. If you suspect a mechanical failure, remember that safety always comes first—when in doubt, replace the unit.