Description
The Lennox 14A53 is a genuine OEM two-stage pressure switch engineered to deliver precise, dependable pressure sensing for Lennox two-stage gas furnaces. Designed with dual set points of .40″ and .70″ W.C., this switch monitors the negative pressure generated by the inducer motor to verify proper venting conditions before allowing ignition to proceed — a critical safety function in any high-efficiency heating system.
Key Features
- Genuine Lennox OEM replacement pressure switch
- Two-stage design with dual set points: .40″ and .70″ W.C.
- Monitors inducer motor operation to confirm safe venting conditions
- Prevents ignition if adequate draft pressure is not established
- Direct drop-in replacement for compatible Lennox two-stage furnace models
- Helps maintain system efficiency and protects heat exchanger integrity
Why Replace Your Pressure Switch?
A faulty pressure switch is one of the most common causes of furnace lockout and no-heat calls. The Lennox 14A53 restores proper safety circuit function, ensuring your two-stage furnace cycles correctly through both heating stages. Using a genuine OEM part guarantees compatibility and eliminates the guesswork associated with aftermarket substitutes.
Application
- Compatible with select Lennox two-stage gas furnaces
- Verify compatibility with your specific furnace model number before ordering
Specifications
- Brand: Lennox
- Part Number: 14A53
- Switch Type: Two-Stage Pressure Switch
- Set Points: .40″ / .70″ W.C.
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