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If you are seeing an open limit switch error code on the control board
this diaphragm-actuated switch ensures reliable proof of airflow before allowing ignition or system operation
always verify the limit switch temperature rating and probe length against your specific unit's data plate
technicians typically adjust the gas valve regulator to 10
or if the system initiates a lockout after just few seconds of operation
York S1-024-35658-000 Limit Control Els PW 17895 If you are seeing anThe York S1 024 35658 000 Limit Control is a critical safety component used across a wide range of York HVAC systems, including residential furnaces and air handlers. Engineered with a fixed 170F opening temperature and a 50F closing differential, this high limit switch protects the heat exchanger and surrounding components from thermal damage by interrupting 24V control power if internal temperatures exceed safe operating parameters. As a direct OEM
US$ 32.00
US$ 30.00
US$ 33.00
