Description
The York S1-024-35263-000 is a genuine OEM SPST (Single-Pole, Single-Throw) pressure switch engineered for use in York heating and cooling systems. Designed to monitor negative pressure levels within the equipment, this switch provides reliable safety protection by interrupting the control circuit when pressure falls outside the specified operating range.
Key Features
- OEM York replacement pressure switch for precise, factory-matched performance
- Set point: -1.45″ w.c. (inches water column) for accurate negative pressure sensing
- 1/4″ barbed port connection for secure, leak-free tubing attachment
- SPST (Single-Pole, Single-Throw) switching action for straightforward circuit control
- Monitors inducer/draft pressure to protect against unsafe operating conditions
- Direct OEM replacement ensures compatibility with applicable York equipment
Specifications
- SKU: S1-024-35263-000
- Brand: York
- Switch Type: SPST
- Set Point: -1.45″ w.c.
- Port Connection: 1/4″ Barbed
Application
This pressure switch is commonly used in York gas furnaces and air handlers to verify proper draft inducer operation before allowing ignition. When the inducer motor creates the correct negative pressure, the switch closes to signal the control board that it is safe to proceed with the ignition sequence. If the required pressure is not achieved — due to a blocked flue, failed inducer, or other fault — the switch remains open, preventing ignition and protecting the heat exchanger and surrounding components from damage.
Why Choose OEM?
Using a genuine York OEM pressure switch ensures the correct set point, connection type, and electrical rating for your specific equipment model. Aftermarket substitutes may not match factory specifications, potentially leading to nuisance lockouts or, worse, unsafe operation. Trust the York S1-024-35263-000 for a reliable, code-compliant repair.









