Why Did My Water Pump Stop Working? - Black Diamond Plumbing & Mechanical (2024)

Relying on a private well pump for the usable water needs of your home or business can come with tons of excellent advantages, and generally speaking, these simple pump units are quite dependable when properly maintained. However, when your water stops flowing and the pump fails, you can be left with a frustrating question: “Why did my well pump stop working?” Unfortunately, it’s not as simple as making a phone call (as it would be for a homeowner that uses city water).

Luckily, troubleshooting why a well pump is not working is actually fairly simple, as long as you know what to look for. Follow along while the plumbing experts at Black Diamond Plumbing & Mechanical detail the top causes for a failed water pump.

Troubleshooting a Water Pump That Has Stopped

In case you are new to the use of water pumps, do keep in mind that the pump does not run all of the time. In water pump systems, the pump engages to fill the pressurized water tank and will only engage again to refill as needed. However, if you are turning on faucets and getting no wateror only small amounts at low water pressure, then it’s time to check for a cause.

Start troubleshooting your water pump in this order:

  • Make certain that the water pump is the problem. Be sure to test both the cold and the hot taps on the faucet you are using. If the hot water is not running, but the cold runs fine, then the issue lies with a plumbing problem connected with your hot water heater and not the well pump.
  • Check the breaker or fuse box. As an automatic mechanical system, water pumps, of course, rely on a supply of electricity. Inspect your breaker box and see if the breaker has tripped, and if it has, then reset it and you should restore power to the pump. If the breaker trips again, then there is an electrical or mechanical issue with the water pump, which will require a professional plumber.
  • Ensure the “on” switch is engaged. Not all well pumps come with a simple “on” and “off” switch, but many do. Make certain if you have one that it is engaged and set correctly.
  • Inspect the pressure gauge. The pressure gauge on your pressurized water tank essentially controls when your water pump turns on. On the gauge, or written on the tank near to the gauge, there will be a listed “CUT-IN” pressure. This is the pressure level that will trigger the pump. If the pressure displayed on your gauge is lower than the Cut-in pressure, but the pump is not turning on, you are likely looking at a faulty or worn down pressure switch or gauge.

When to Call a Professional Plumber for Water Pump Repair

If the above information got you nowhere then it’s time to call on your local Chicago plumbing contractor. The remaining issues deal with the electrical and mechanical aspects of your pump, which will require the tools and training of a professional. Common types of component failure that you may be dealing with include:

  • Stuck pressure control relays
  • Problems with the pressure switch relay contacts
  • A damaged pump motor or worn-out wiring
  • A torn water bladder/diaphragm

If your water pump fails, there’s only one name you need to know: Black Diamond Plumbing & Mechanical! Contact our experts online, or call 815-444-0979 to schedule water pump repair today.

Why Did My Water Pump Stop Working? - Black Diamond Plumbing & Mechanical (2024)

FAQs

Why did the water pump suddenly stop working? ›

Pump impellers and seals may fail and foreign matter and debris from the tank can clog the pump internals. Low water levels in the tank can also cause run dry failure. If your pump/motor system stops running you may have an electrical fault or foreign matter seizure. These problems are often economically repairable.

Why is my water pump not firing? ›

Electrical Problems: Faulty electrical connections or damaged components can prevent the pump from starting or cause abrupt stops. Solution: Check electrical connections and replace damaged parts to ensure a smooth start. Overheating: Overheating can trigger safety mechanisms that shut down the pump to prevent damage.

How do I get my water pump to work again? ›

How To Prime Your Water Pump
  1. Make sure the power is turned off. Never leave a pump plugged in while you're working on it. ...
  2. Gain access to the pump system. ...
  3. Check for damage. ...
  4. Test a hose. ...
  5. Open the relief valves. ...
  6. Attach the hose. ...
  7. Turn on the water and wait for it to enter the tank. ...
  8. Turn the power on.

Why is my pump suddenly not working? ›

Look at the factory specifications for your pump and ensure that it is receiving the correct electrical power supply in order to work properly. Ensure that all electrical wiring is in good condition, that there are no loose connections and that the electrical current is reaching your pump in the first place.

What is the most common problem of a water pump? ›

Cavitation. Cavitation is a common problem that can occur in water pumps. This is caused by low pressure in the pump, which can create air bubbles that implode and cause damage to the impeller and other components. Symptoms of cavitation include noise, vibration, and damage to the impeller.

Do water pumps fail suddenly? ›

On cars with timing belts, the water pumps get replaced every 60,000-90,000 miles before they get a chance to fail. My wife once had a water pump fail catastrophically out of the blue, so it's certainly possible. I've had the bearings seize on more than one water pump, and ruin the belt.

What is one cause of pump failure? ›

A pump failure is a mechanical or electrical problem that prevents a pump from functioning correctly. This can be caused by various issues, including a broken impeller, a loss of power, or a clogged filter.

Why is there no water coming out of my water pump? ›

There are many things that could lead to no water supply even with your water pump running. Some of the possible issues include: A blocked sediment filter or a failing filtration system. Low water table caused or overusing your water supply.

Why did my water suddenly stop working? ›

So, when your water stops running from the faucets, it can be cause for concern. If your water suddenly stops running, the first thing you should do is not panic. Common reasons for the water to shut off include a closed valve, a water heater malfunction, leaky pipe, or an issue with your water supply.

Can you fix a water pump yourself? ›

Fixing a water pump refers to the process of replacing an essential part of your vehicle's cooling system. It is one of the least complicated procedures to carry out, as far as auto repairs go, so almost anyone who can operate a wrench can do this on their own.

Why is my water pump shutting off? ›

Too Little Air in the Reservoir Tank

These tanks depend on air pressure within to regulate the pressure switch. If the inside air pressure drops, the tank will not trigger the pressure switch correctly, causing the pump to switch ON and OFF erroneously.

What happens to a water pump when it goes bad? ›

An old water pump will develop a slow leak that causes it to corrode. The reason for the corrosion is that the coolant pools around the pump and is constantly resting against the metal housing. Naturally, the liquid will start to rust the metal and the rust will eat through the metal.

Why would a water pump shut off? ›

Water lines run from the reservoir to the endpoints like taps or showers in your house. These lines, when clogged, can create higher internal pressure, causing the water pump to cut off abruptly even when there is room for more pressure.

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