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Sterling HVAC 11J11R06778-003 Pressure Switch

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Special Price $220.73 Regular Price $245.01
In stock
SKU
11J11R06778-003
The Sterling HVAC 11J11R06778-003 Pressure Switch is a high quality part that used to control pressure within HVAC systems to prevent any hazardous conditions. This unit is used in gas furnaces and heating units to measure positive & negative pressure in the flue or combustion chamber of the system. When pressure is high or low from the set standard the switch either breaks or makes electrical circuit to the control board to continue the operation or stop it respectively. Some of the advantages include protection of the system from overheating increased efficiency of energy utilization and protection of the equipment from wearing out.
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HVAC Controls & Electrical, Switches, Pressure Switches
Manufacturer:
https://www.partshnc.com/media/catalog/product/1/1/11j11r06778-003_sterling-hvac_partshnc.png

Specifications

  • Type: Pressure Switch
    Manufacturer Name: Sterling HVAC
    Product Number: 11J11R06778-003
    OEM Part Number: 11J11R06778-003
    Product Description: Pressure Switch
    Weight:0.14lbs/63.5g

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    Product Questions (2)
    Customer Questions
    What maintenance is required for the Sterling HVAC 11J11R06778-003 Pressure Switch?

    Regularly inspect the pressure switch for dust, debris, and secure connections. Check tubing for leaks or blockages and test switch operation periodically. Proper maintenance ensures accurate pressure sensing and safe system operation. Always disconnect power before servicing.

    What are common issues with the Sterling HVAC 11J11R06778-003 Pressure Switch?

    • Failure to open or close at set pressure.
    • Inaccurate or fluctuating readings.
    • Leaking or cracked tubing connections.
    • Electrical connection faults.
    • System lockouts due to false pressure triggers.

    Installation Steps

    Step 1: Turn off power to the HVAC system to prevent electrical hazards.

    Step 2: Remove the existing pressure switch from its tubing and mounting.

    Step 3: Install the new pressure switch securely in place.

    Step 4: Connect the tubing to the switch port, ensuring a tight, leak‑free fit.

    Step 5: Reconnect wiring according to the system diagram.

    Step 6: Restore power and test to confirm proper pressure switch operation.