Modine 5H0735910007 Pressure Switch

The Modine 5H0735910007 Pressure Switch is the direct replacement for 5H73591-7, engineered specifically for high-performance Modine unit heaters including PDP200, BDP200, BDP250, and PDP350 models. As a critical HVAC safety switch, this Cleveland Controls model NS2-0278-00 monitors the draft inducer motor to ensure proper exhaust venting before the igniter and gas valve are energized. Designed for 24V control circuits, this OEM Modine part prevents dangerous flame roll-out and unburnt gas accumulation by verifying a precise inches of water column (WC) differential. Whether you are performing preventative maintenance or troubleshooting a two-flash error code, this differential air pressure switch offers the exact set point accuracy required for industrial and commercial heating systems. Its durable construction withstands the high-cycling demands of power-vented units, ensuring reliable system reliability and equipment protection in rigorous environments.

• Direct OEM Compatibility: Verified as the official crossover for part 5H73591-7, ensuring a perfect fit for Modine PDP and BDP series heaters without field modifications.
• Enhanced Safety Logic: Precisely monitors air draft to prevent combustion cycles during venting failures or blocked flue conditions.
• Contractor-Grade Durability: Built to the latest technical specifications to handle the vibration and thermal stress common in industrial HVAC applications.
• Seamless Integration: Features standard electrical terminals for quick connection to the integrated furnace control board.

How do I verify if my Modine pressure switch has failed?
A veteran tech will use a manometer to check if the inducer motor is pulling the required inches of water column. If the pressure is correct but the switch remains open (showing 24VAC across terminals), the switch requires replacement.

What does a two-flash LED code mean on my Modine heater?
This typically indicates the pressure switch is closed before the inducer starts, or it failed to open at the end of the last cycle. Replacing it with an OEM 5H0735910007 ensures the safety logic is restored.

Can I use an adjustable universal switch instead of this part?
For Modine power-vented units, using the specific OEM pressure switch is recommended to maintain the exact differential set point required by the factory wiring diagram.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.