Always ensure the bulb is insulated and mounted on a horizontal run before the external equalizer port

The "trip-free" manual reset mechanism ensures the switch cannot be reset until the system pressure has sufficiently receded

This specific Fenwal 35-65 series model is configured for no pre-purge (0 seconds) operation with a 4-second Trial for Ignition (TFI) and a 3-try ignition sequence to ensure reliable startup in demanding environments

low-resistance connection to transducer terminals

extending the service life of the on/off control valve

Nordyne M0088903 Blower Motor 318172-701 Always ensure the bulb isThe Nordyne M0088903 Blower Motor is a high efficiency 1 HP ECM blower motor engineered for precise airflow control in residential HVAC systems. Designed as a direct replacement for various Nordyne, Miller, and Intertherm furnaces, this electronically commutated motor operates with variable speeds to maintain consistent static pressure and optimize system performance. Its brushless design reduces mechanical wear compared to standard PSC motors,