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water well pressure switch troubleshooting

by Miss Sylvia Langosh Published 4 years ago Updated 2 years ago

  • Be Sure the Power is On. Start by checking that the well switch located near your pressure tank hasn't been switched off. ...
  • Then Check the Pressure Switch. You'll find the pressure switch mounted on a 1/4-in. tube near the pressure tank. ...
  • If the Switch is Bad, Replace It. If you find the pressure switch is bad, test the pressure tank to make sure it isn't waterlogged (see Problem: Pulsing Water).
  • Temporary Quick Fix. If banging on the tube under the pressure switch kicked on the well pump, it means the contact surfaces of the electrical contacts are pitted or burned, ...
  • Replace the Pump Controller. Remove the screw at the bottom of the pump control cover and lift it off the box to disconnect it. ...
  • Check the Pressure Tank's Air Valve. Unscrew the plastic cover from the air valve on the top of the tank. ...
  • Rock the Tank. Push against the top of the tank to rock it slightly. If you can't rock it or it feels top heavy, it's bad.
  • Hire a Professional

Part of a video titled Pressure Switch Troubleshooting - YouTube
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The pressure switch is the device that turns the well on and off according to water demand. When theMoreThe pressure switch is the device that turns the well on and off according to water demand. When the switch fails you will have the water you will find it you need to service your pressure switch.

Full Answer

How do you replace a water well pressure switch?

  • Ensure that the wires are turned clockwise around the screws. Wires, especially stranded wires, are greatly compromised when they are turned counter-clockwise.
  • Check the metal contact points that open and close, thus triggering the system off or on, respectively. ...
  • Check the nipple standpipe on which the pressure switch rests. ...

How do you replace a well pressure switch?

How to Replace a Well Pump Pressure Switch

  • Replace a faulty pump pressure switch. Label each wire with tape. ...
  • Well Pump Pressure Switch Adjustment. Your well pump gets its marching orders from the switch mounted on the pressure tank. ...
  • Video: Fixing a Dead Well
  • Video: Fixing a Well Pressure Tank
  • Required Tools for this Project. ...

How to tell if well pump pressure switch is bad?

📌 How to Tell if Your Pressure Switch is Bad

  • Switch off the Power. For your well system to be safe to access, you need to prevent power from traveling to the well pump system.
  • Find the Well Switch. ...
  • Look for Leaks. ...
  • Assess the Contacts. ...
  • Let the Pump Cycle. ...
  • Check the Pump’s Connection. ...
  • Assess the Electrical Contact Surfaces. ...

How do you test a water well pressure switch?

How to tell if a pressure switch is faulty before you call for a well pump repair?

  • The pump works fine, but the water pressure is weak.
  • The pump does not come on and refuses to supply water.
  • The water pump runs well, but, the pump cycles on and off almost immediately.

Why won't my water pressure switch turn on?

What does failure of pressure switch mean?

What to do if water pump isn't working?

Why does my pressure switch degrade?

How does a pressure switch work?

Why is my pressure sensor clogged?

Why does my pump cycle?

See more

How do I know if my well pressure switch is bad?

How to Tell If Your Well Pump Pressure Switch Is BadYour water pressure is at or above the cut-out pressure, yet the pump doesn't turn off.Your pump doesn't turn on at the proper cut-in pressure.You have low water pressure even though the pump is running.Your pump runs, but it cycles on and off repeatedly.

How do I know if my pressure switch is not working?

0:171:05why is my pressure switch not working - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd remove the nut on the top of the pressure switch. Cover. Next take a multimeter. And verify thatMoreAnd remove the nut on the top of the pressure switch. Cover. Next take a multimeter. And verify that there is no power to the pressure switch typically the switch runs on 220 volts.

Why does my pressure switch Keep clicking on and off?

Switch Clicks On and Off Repeatedly One of the most frequent culprits is a blown bladder in the water tank. You'll need to replace this component, and also inspect the switch contacts to see if they've suffered any damage from the cycling.

How do you test a well pump pressure switch?

Then Check the Pressure SwitchYou'll find the pressure switch mounted on a 1/4-in. tube near the pressure tank. ... Remove the cover and bang a screwdriver handle sharply against the tube below the switch to jar the electrical contacts.If you see a spark and the pump starts, the pressure switch is the problem.

What causes pressure switch failure?

A pressure switch that fails to turn on could be caused by a number of problems, including: Failure of the draft inducer motor. Restricted intake air vent. Restricted combustion air vent.

How do you check a pressure switch?

1:1814:26How to Test Pressure Switch on a Furnace - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo the first way you can check it is by setting your meter to the ohm symbol or - resistance.MoreSo the first way you can check it is by setting your meter to the ohm symbol or - resistance.

Why does my water pressure switch Keep clicking?

Pressure tanks house a bladder full of air, similar to the inner tube in a bike tire, and the bladder can leak or lose air. When this happens, you may notice a constant or rapid clicking noise coming from the pressure switch located near the pressure tank.

Why is my pressure switch chattering?

Clogs or blockage at the water supply outlet side of the pump; a dirty or clogged water filter can cause pressure switch chatter as can corrosion or scaling inside the water supply piping to the pump or anywhere between the pump outlet and the pressure tank's inlet.

Why is my well pump clicking?

If the click occurs say once every 30 seconds, that's normal. It's the pump switching on and off as pressure falls and rises. Watch out: If the clicking pressure switch is switching the pump on and off very rapidly, say every second, TURN THE PUMP CIRCUIT OFF immediately to avoid damaging the equipment.

How long do well pressure switches last?

The pressure switch can last for several years, but sometimes it can fail much sooner than you expect. To avoid being left without a functioning well, some homeowners simply have the switch replaced every year. Your well pump contractor can make this replacement when they come out for their yearly maintenance visit.

How do you clean a well pressure switch?

Clean the Switch After turning off the power, remove the pressure switch's housing. Test for power at the wires using a non-contact voltage tester. Thoroughly clean out the switch either with a shop vacuum or by blowing out the debris with an air compressor.

How do you reset the pressure switch on a well pump?

0:552:05Well Pump Restart. (This is how you turn the water back on) - YouTubeYouTubeStart of suggested clipEnd of suggested clipUntil you hear the pump start and continue to hold until the pressure climbs above 20 pounds in yourMoreUntil you hear the pump start and continue to hold until the pressure climbs above 20 pounds in your system.

Why does my jet pump run intermittently?

For jet pumps you’ll want to check the copper/plastic tubing. Debris can get lodged inside the bottom of your pressure switch and “blind” it from reading the pressure, which can cause the pump to run intermittently and sometimes not at all.

How to check if power is off?

To ensure the power is off, be sure to check it with a volt-meter first. Tip: Always use forked wires to connect to the terminals instead of bare threaded wire. If stranded wire is your only option, make sure that the wire is wrapped around the terminal in a clockwise direction.

What does it mean when a pressure switch kicks on a well pump?

If banging on the tube under the pressure switch kicked on the well pump, it means the contact surfaces of the electrical contacts are pitted or burned, causing a poor connection. You can temporarily restore the surfaces to keep it going until you can buy a replacement switch.

What happens if a well pump switch is bad?

The switch then powers up the well pump. If the switch is bad, it won't start the well pump and you won't have water, so testing the switch is your first step. Remove the cover and bang a screwdriver handle sharply against the tube below the switch to jar the electrical contacts.

How to replace a pressure switch?

To replace the switch, start by removing the wires to the old switch and unscrew the switch. Pro tip: Be sure to label the wires!

What does it mean when a well pump is on?

When a well pump turns on, you'll hear the clicking of the pressure switch opening and closing. If you hear frequent clicking when no water is flowing, you have problems outside the house and you'll need to hire a pro.

How to check if a well pump is tripped?

Then check the well's double-pole circuit breaker to see that it hasn't tripped. If it has, reset it. A breaker that keeps tripping likely means a problem with the well pump, and you'll need to call a pro for that. Step 2.

How do you know if you have a well?

The most common symptoms of well trouble are no water at all, pulsing water pressure and a well pump that runs constantly. If you experience any of these, there's a good chance you can solve the problem yourself.

What does it mean when water is spigot?

When water "pulses" at the spigot, it usually means you have a waterlogged tank. Replacement is your only option. A new tank costs about $200 and up. Two methods for diagnosing a bad tank include checking for water at the air valve and shaking the tank. Step 7.

What Is a Well Pump Pressure Switch?

The pressure switch signals to the well pump when it needs to start or stop pumping water. It does this based on the built-up pressure in the water system. The switch typically has the following range of numbers: 20–40, 30–50, 40–50. These relate to the pound per square inch (psi) pressure levels.

Where Is the Well Pump Pressure Switch Located?

Locating your well pump pressure switch will be your first challenge; its location can vary depending on the type of pump and your home setup. You’ll usually find the switch on the side of a jet pump. However, you’ll find the covered switch’s location elsewhere if you have a submersible pump.

Reasons for Well Pump Pressure Switch Failure

The pressure switch comprises a simple internal spring mechanism connected to a set of electrical contacts. Over time, the spring weakens, parts clog with debris, and the electrical contacts corrode and degrade.

Signs Your Well Pump Pressure Switch Is Failing

Some common indications that there could be a problem with your well pump pressure switch include:

Troubleshooting Well Pump Pressure Switch Problems

Before you call out a professional, there are some simple troubleshooting steps you can try first. For safety, make sure you cut the power supply to the well pump system off in advance. To inspect the inner workings of the switch, you’ll need to remove the plastic covering.

Check for Electrical Connection Problems

Before turning off the power, bang a screwdriver handle against the tube the well pump switch is on. If you notice a spark or the pump powers back on, this could be a sign of problems with electrical connections in the pressure switch.

Unclog the Pressure Sensor

Water sediment and iron bacteria can build up in the switch's pressure sensor. You can clean the tube that connects your switch to the water supply with the power turned off.

What Is a Pressure Switch in a Well?

A pressure switch is the part in your pump that tells the well pump to start or stop pumping the water. Pressure switches control the pressure level in the tanks. You’ll want to adjust the settings to meet your home's water needs if you're currently not getting enough water.

Types Of Pressure Switch Settings

There are two types of pressure switch settings. Here is how they work:

Common Well Pressure Switch Problems

There are many different problems that can arise with a well pressure switch. These are the problems you’ll run into the most often:

How To Adjust Well Pressure Switch Properly (Step By Step Guide)

First, you’ll need to gather your tools. All you need is a good set of plumbers’ pliers. Before you do anything else- make sure to cut the power to the switch from the supply. Doing so keeps you safe and is essential.

People also Ask (FAQs)

You can raise the pressure to the settings your model says it can handle. Some go up to 70/50- others can even get as high as 90 psi. Most of the time, you don’t need to go above 40/60.

Conclusion

Overall, it’s easy to adjust your well pump pressure switch. You simply need to turn the nut in the direction you want to adjust the pressure. If it doesn’t seem right, you can always wait and try again.

Switch off the Power

For your well system to be safe to access, you need to prevent power from traveling to the well pump system. The last thing you want is to accidentally touch a live wire at the same time as holding a grounded water pipe.

Find the Well Switch

You should find the pump switch connected to the pump or pipe supplying the pressure tank. Unscrew the top screw cap of the pump covering, using plumbing pliers if you need them.

Look for Leaks

A leak can be the most obvious sign that something isn’t right. If you notice water leaking out of the switch, it may simply need tightening. Use your plumbing pliers to do this. An internally leaking switch is a more complex issue, and a sign that the switch is bad.

Assess the Contacts

I mentioned earlier that contacts can rust and detach from the pump over time. Pry apart the contacts and pull away the internal spring. The switch should close, and water pressure should increase. If not, it probably needs a repair or replacement. You can turn your power on again if the switch does close.

Let the Pump Cycle

Next, with your power back on, head to a faucet nearest to your pump and open it. Let the pump run a complete cycle.

Assess the Electrical Contact Surfaces

Pull apart the electrical contact surfaces and look them over. If you notice burns, or you can feel pits in the discs, you need new contacts.

About The Author

Jennifer has over 18 years of experience in the water treatment industry by providing filtration solutions for residential ,commercial and industrial clients. Her passion... [Read Full Bio]

Where is the pressure switch located on a well pump?

A pressure switch can be located either outside or in your basement, garage or pool housing, depending on how your well system is set up. If you have a submersible pump, ...

How to tell if a pressure switch is working?

Now that you know what a pressure switch does and how it works, it’s a bit easier to troubleshoot problems with your well pump. If you are experiencing the following issues, it’s possible your pressure switch has failed or malfunctioned: 1 There is no water and the pump doesn’t turn on at all 2 The pump keeps cycling 3 The pump is working but the water pressure is weak

Why does my pressure switch fail?

Over time, the springs may loosen and the wire ports may become exposed and corroded. Something as simple as a bug stuck between electrical contacts can prevent them ...

Why does my water pump keep cycling?

The pump keeps cycling. The pump is working but the water pressure is weak. Mind you, these symptoms are not unique to pressure switch problems. There could be other reasons why this is happening, such as a decompressed pressure tank or a failed pump.

Does a pressure switch need to be replaced?

It may not be a wear part in its traditional meaning, but a pressure switch may need to be replaced several times during your home ownership.

Why is my well pump not delivering water?

Another reason your well pump may not be delivering water is sediment. Rocks or other small materials may be blocking the pump from water getting through. These materials can wear your pump down so it’s important to remove them immediately.

Why is my well not working?

One of the most common causes of a well not working is that it has no access to power. This happens a lot in residential areas. If you can recall a power surge that happened in your area or an increase of power this may have caused the issue.

Why does my well pump make a clicking sound?

Noisy Pump. When a well water pump turns on you will hear a clicking sound. That sound is the pressure switch opening and closing. If your pump isn’t delivering water but you hear this clicking sound its time to get professional well pump services. This sound indicates that the problem with the well water pump may be between the pump and your house.

What to do if water is not flowing through pump?

If water is not flowing through your pump the next thing you should do is check the air pressure. Look for the air valve at the top of the water tank and test it with a tire gauge. If the pressure is low the tank may be filled with water or the air bladder is broken.

Why is it important to keep a well pump in good shape?

Not to mention you’ll have a pretty good idea of what kind of chemicals are in your water. That’s why it’s important to keep your pump in great shape so you can be in control of your water supply.

What happens when a water pump is dry?

This problem can happen during a drought or dry seasons. This means that there isn’t that much water to move through the pump. This problem could be fixed when the dry spell is over. If it isn’t temporary your pump will need to be moved deeper into the ground.

Why won't my water pressure switch turn on?

Switch Won’t Turn On. If your switch won’t turn on, this could be a sign your tank pressure is above your switch’s cut-in pressure. Try running some water elsewhere in the building to reduce pressure below the cut-in level. You can also try gently tapping on the pressure gauge, the switch, and the tank.

What does failure of pressure switch mean?

Failed Connection. A malfunction in your switch could indicate a problem elsewhere in the system. For instance, if your piping is of the wrong size, it can cause a leaky connection. This will stop the pressure switch from doing its job effectively.

What to do if water pump isn't working?

If it isn’t, make sure your filter isn’t clogged or in need of a change. Check the pressure gauge to make sure it isn’t stuck or damaged. Once you’ve ruled out the water pump and other components, you can turn your attention to the water pump pressure switch.

Why does my pressure switch degrade?

The electrical contacts in your pressure switch can degrade over time. Frequent cycling of power to the switch and the presence of corrosive substances are two common causes. You make a temporary repair to contacts by filing away the affected area, though be sure to kill all power to the pump before you do.

How does a pressure switch work?

Basically, your pressure switch tells your well pump, which delivers water to your home, when to turn on and off. It does this by monitoring pressure and letting more water flow into the system when the pressure falls to ...

Why is my pressure sensor clogged?

If you live in an area with high mineral content or sediment in your water, your pressure sensor can become clogged. Try cleaning the tube that connects your switch to the water supply. You may also need to clean the bottom of the switch itself.

Why does my pump cycle?

One of the most frequent culprits is a blown bladder in the water tank.

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