The most common symptom is the furnace igniting for a few seconds and then immediately shutting down (short cycling)

The 310137 is technically identical to the 310137/U universal designation

preventing heat transfer bottlenecks

Reliable Performance: Engineered for continuous duty to maintain stable flame patterns and reduce soot buildup caused by inadequate air-to-fuel ratios

ASCO 8215G80-24VDC Valve Freon The most common symptom isThe ASCO 8215G80 24VDC is a professional grade 2" normally closed solenoid valve engineered for precision control in high demand combustion systems. As the direct replacement for 8215B80 24VDC, this internal pilot operated valve is optimized for air, fuel gas, and LP gas applications, including propane in both liquid and gaseous states. Constructed with a rugged aluminum body and stainless steel internal trim, it ensures superior durability in