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an unloaded reading should stay consistently above 650mv for reliable operation
Manufactured from high-grade materials to prevent stem deflection during high-torque operations
It is engineered to protect the expansion valve and compressor from harmful contaminants
Does this board include the sampling tube
vibration in the heater cabinet
Williams 7B111 Fan Blade 30067439-890 an unloaded reading should stayThe Williams 7B111 Fan Blade is a critical replacement component designed specifically for Forsaire Counterflow Top Vent furnaces. This 8 blade aluminum assembly is engineered for 65,000 BTU models, including the Williams 6508 series, where maintaining precise static pressure and consistent CFM is vital for heat exchanger integrity. Featuring an 11 1 4" diameter and a 1 2" bore, this CW (clockwise) rotation blade ensures the blower assembly moves air