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calendarAug 29,2023

How to Test a Well Pressure Switch

A well pressure switch is one of the components that make up a well water system. It is responsible for controlling the operation of the well pump based on the water pressure in the system. When a well pressure switch does not work properly, you may experience a lack of water or very low water pressure in your home. Moreover, a malfunctioning pressure switch can cause the well pump to cycle on and off rapidly or at irregular intervals.

Thankfully, there are simple steps you can follow to test a malfunctioning well pressure switch. You don’t have to be an experienced plumber to test a well pressure switch, but if you’d like assistance from a professional plumbing service, reach out to the experts at Trust Rooter. We are a professional plumbing company offering a comprehensive range of plumbing services, including well pressure switch repair, drain services, lift station maintenance, backflow preventer repair, and many more.

Common Issues with a Well Pressure Switch

  • Switch Won’t Turn On or Off: When your well pressure switch refuses to engage or disengage, it often indicates internal mechanical problems. This can result from wear and tear, blockages, or electrical issues within the switch.
  • Switch Clicks On and Off Repeatedly: If you hear the switch clicking incessantly, the issue could be an unstable pressure setting.
  • Pressure Sensor Clogging: Over time, debris and sediment can accumulate in the pressure sensor of the switch and cause inaccurate pressure readings.
  • Damaged Diaphragm: Any damage to the diaphragm, such as tears or punctures, can disrupt the pressure switch’s ability to regulate pressure accurately.
  • Loose Wiring: Loose or frayed wires can result in intermittent electrical connections. This can cause erratic pump operation or even complete failure to activate the pump.
  • Bad Contacts: The contacts within the switch can deteriorate over time and compromise electrical connections.

Step-By-Step Guide to Test a Well Pressure Switch

  • Step 1: Shut Off Power

Before you do anything, turn off the power to your well pump system at the circuit breaker or disconnect switch. This ensures you won't get electrocuted while working on the pressure switch. Your safety should always come first.

  • Step 2: Drain Water Lines

The next step is to open a faucet or valve downstream from the pressure tank to relieve pressure and drain water from the system. This step is crucial to preventing any unexpected bursts of water when you work on the switch.

  • Step 3: Access the Pressure Switch

Locate your pressure switch and remove any covers or enclosures that might be protecting the switch.

  • Step 4: Check If Water Is Leaking Out Of the Switch

Inspect the switch for any signs of water leakage. If you find water around the switch, it could indicate a damaged diaphragm or seal that needs replacement.

  • Step 5: Check the Contacts and Wiring

Next, examine the electrical contacts and wiring connected to the pressure switch. Ensure that the connections are secure and that there are no visible signs of damage or corrosion.

  • Step 6: Test for Continuity Using a Multimeter Set

Set your multimeter to measure continuity. Then, disconnect the wires from the pressure switch terminals. Touch one multimeter probe to each terminal. If you hear a continuous beep or see a reading of zero ohms, it indicates that the switch contacts are closed and the switch is functioning correctly in the "ON" state.

If you need help with troubleshooting and repairing your well pressure switch, get in touch with Trust Rooter. Our reliable plumbers have the expertise, experience, and top-of-the-line equipment to fix a failing well pressure switch and restore its proper functioning.

Do You Need a Local Plumber in Broward and Palm Beach Counties? Reach Out to Trust Rooter Today!

Trust Rooter is a professional plumbing company that has built a reputation for offering reliable residential and commercial plumbing services. From drain cleaning to water heater maintenance, garbage disposal repair, water leak repair, faucet repair, and sewer drain repair, Trust Rooter is your go-to plumbing company for all of your plumbing needs.

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