What causes a pressure switch to stay open

Key Benefits Precise Thermal Call: Calibrated with a 190°F open and 160°F close range for optimal system protection

engineered to interrupt the electrical circuit when internal temperatures exceed safety parameters

preventing the blade degradation that causes airflow imbalances

ensuring longevity in demanding operational environments

Wayne 101295-SERM Ignition Source Els PW 17895 What causes a pressure switchThe Wayne 101295 SERM Solid State Ignition Source is a high performance 120V electronic ignitor engineered for combustion reliability in demanding HVACR applications. Operating at 115 120 VAC (50 60Hz) with a 40VA rating, this solid state ignition transformer provides a consistent high voltage spark to ensure clean light offs for oil burners, natural gas, and liquid propane systems. Designed as a rugged upgrade to traditional iron core transformers,