Maxitrol MR610-1 Valve 30067439-890 or a failing blower motor

or a failing blower motor that cannot move enough air across the heat exchanger

providing the flow direction follows the arrow cast into the bronze body

Direct Compatibility: The 5/8-inch bore and 30-inch diameter match original equipment specifications for a "drop-in" installation

refer to the VS series PopTop valves

Maxitrol MR610-1 Valve 30067439-890 or a failing blower motorThe Maxitrol MR610 1 is a high performance 1" NPT modulating gas valve and regulator engineered for atmospheric burners and Selectra electronic gas flame modulation systems. This modulator regulator valve performs a critical dual function, providing both precise pressure regulation and instantaneous flame adjustment without the need for external mechanical activation or motorized butterfly valves. Designed to handle a maximum inlet pressure of 1 2 PSI