R45695-004 Furnace Pressure Switch Compatible for Lennox Honeywell Gas Furnace Air Pressure Switch Replaces Part 45695-005 -0.70 inch Inches WC, 1/4 inch Hose Connection

This aftermarket replacement part (Model: R45695-004/45695-005) is a Furnace Pressure Switch compatible with target furnace models. It features a negative pressure range of -0.70" Inches WC and a 1/4" hose connection, designed to fit residential and commercial furnace series (see full compatibility list). The switch monitors negative air pressure in the furnace ventilation system, ensuring safe ignition and operation by closing the circuit only when the pressure meets or exceeds the set value. It effectively resolves issues caused by faulty pressure switches, such as furnace failure to ignite, frequent shutdowns, or air pressure-related error codes. Crafted with temperature-resistant engineering plastic and sealed metal connectors, it offers reliable performance in high-temperature furnace environments for long-term use.

• Targeted Compatibility - Compatible with Lennox furnace models (residential and commercial series), precise size matching for direct installation without modifications.
• Key Specifications - -0.70" Inches WC negative pressure range, 1/4" hose connection, no-voltage mechanical design, sealed metal connectors for stable circuit closure.
• Easy DIY Installation - Simple to install with common tools, directly connects to furnace air ducts, no professional HVAC skills required, saving repair costs.
• Fixes Critical Issues - Resolves furnace ignition failure, frequent shutdowns, and air pressure-related error codes, restoring normal and safe operation.
• Durable Construction - Made with temperature-resistant engineering plastic and sealed metal parts, resistant to high furnace temperatures and wear.