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Rheem-Ruud 42-105443-01 Gas Pressure Switch

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Special Price $61.82 Regular Price $71.10
In stock
SKU
42-105443-01
The Rheem-Ruud 42-105443-01 Gas Pressure Switch is a safety control component used to installed gas flow and ensure proper sludge conditions during burner operation. It operates by detecting normal pressure levels within the gas or combustion circuit and opening or closing an electrical circuit when readings fall outside the safe range. It is installed within the gas train or burner assembly where accurate pressure sensing is required. By verifying correct before and during operation, it supports preventing unsafe ignition conditions, improves combustion, protects system components, and supports consistent heating performance in HVAC systems.
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HVAC Controls & Electrical, Switches, Pressure Switches
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Product Questions (2)
Customer Questions
What maintenance is required for the Rheem-Ruud 42-105443-01 Gas Pressure Switch?

Regularly inspect the switch for dust, debris, or corrosion around terminals. Ensure tubing and connections are secure and free from leaks. Test the switch operation periodically to confirm accurate pressure sensing and follow safety precautions when handling gas components.

What are common issues with the Rheem-Ruud 42-105443-01 Gas Pressure Switch?

  • Failure to open or close at correct pressure.
  • Leaks in tubing or fittings.
  • Erratic or inconsistent system operation.
  • Contamination or debris blocking the pressure port.

Installation Steps

Step 1: Turn off gas and electrical power to the unit for safety.

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

Step 3: Detach vacuum/pressure tubing and remove old switch from mounting bracket.

Step 4: Install new switch in correct orientation and reconnect tubing and wiring securely.

Step 5: Restore power and gas, then test system operation and verify proper pressure response.