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Modine 5H0750300003 SPST Pressure Switch 0.27" WC

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1  Review Add Your Review
Special Price $102.88 Regular Price $118.32
In stock
SKU
5H0750300003
The Modine 5H0750300003 SPST Pressure Switch is a control part to detect the low airflow conditions that is installed in HVAC systems. It is mainly used to open or close an electrical circuit when a difference in water column of 0.27 inches is attained. This system works and responds to airflow variations and initiates internal connections. Installation is a process that includes the connection of the switch to pressure tubing and electrical leads in the control circuit. It is a switch that offers accurate operation and uniform performance in residential and light commercial airflow and control in HVAC systems.
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HVAC Controls & Electrical, Switches, Pressure Switches
Manufacturer:
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Manufacturer Name: Modine
Product Number: 5H0750300003
OEM Part Number: 5H0750300003
Product Description: 0.27"Wc Spst Pressure Switch
Weight:0.16lbs/72.57g

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Product Questions (2)
Customer Questions
What maintenance is required for the Modine 5H0750300003 Pressure Switch?

Inspect pressure tubing and ports regularly for blockage or moisture buildup. Ensure electrical connections remain tight and corrosion-free. Periodic testing ensures accurate switching to prevent system faults and maintain accurate HVAC operation safety.

What are common issues with the Modine 5H0750300003 Pressure Switch?

  • Blocked or restricted pressure sensing ports causing incorrect switching.
  • Electrical contact wear leading to intermittent operation.
  • Calibration drift resulting in inaccurate pressure response.
  • Tube leaks or disconnections reducing system sensitivity.

Installation Steps

Step 1: Turn off electrical power and shut down the unit completely before starting.

Step 2: Remove the access panel and disconnect the existing switch wiring and pressure tubing carefully.

Step 3: Mount the new switch in the original bracket position, ensuring the airflow port faces correctly.

Step 4: Reconnect tubing and wire terminals securely, checking for cracks or loose fittings.

Step 5: Restore power and verify proper draft sensing and ignition sequence operation without fault errors.