6 Reasons Why Your Well Pump Won't Shut Off

When you have a well, you get used to the pump kicking off and on, so you'll notice quickly if it never shuts off. The constant running can be due to a variety of issues, from low water to malfunctioning parts. Understanding how well pumps work and knowing the common issues help you fix the problem.

If you're using lots of water, your well pump might work overtime to keep up. Sometimes, this can happen if someone accidentally leaves a faucet running. Check all the indoor and outdoor faucets to ensure they're all off before checking other issues.

If the water level in the well drops too low, the well pump can't work properly. This can happen during periods of drought or if local water demand increases. When the amount of water or flow rate drops, your pump will keep running. This situation is usually out of your control, but a plumber can tell you if this is the issue or if you have another problem.

Jet pumps sit above the ground and need to be primed, which means filling the intake pipe with water. This creates suction to move the water from the well to the tank. Losing the prime can happen if you haven't used the pump for a while or if there's a leak in the pipe. When this happens, the pump isn't creating the necessary suction to raise the water, so it runs constantly.

Avoid running your pump if you suspect it lost its prime, as this can damage the motor. You can try priming your well pump if you think this is the issue. If priming doesn't work, there could be a leak, and a plumber can repair it.

Leaky pipes make it impossible for your water system to reach the required pressure for the pump to stop running. This is especially true if the pipe leading from the well to the pressure tank has leaks; older well pipes are often galvanized and can corrode. It'll bring some water into your tank, but if enough water leaks out, the tank might not reach a high enough pressure to shut off the pump.

If you have leaks, you might notice wet areas in your lawn. A plumber can locate and repair the leaks by replacing the pipes.

Your well has a pressure control switch to turn the well pump off and on based on the pressure in the tank. If it stops working correctly, it might not cut off the pump. It's also possible that the switch setting is too high, so the pump can't achieve the top pressure measurement.

Let a professional adjust the switch since it's an electrical component near water. A pro can check the settings and determine if it's damaged and needs to be replaced.

Well pumps can become damaged, or normal wear and tear can damage the pump. Some issues can be repaired, but you may need to replace the well pump if it's malfunctioning. Call a well service company or plumber to determine if the well pump is damaged.