Why Should I Replace the Pressure Switch?

If you see sparks when your well pump turns on, you will need to replace the pressure switch before damage is done to other components of your well pump. A sparking pressure switch can damage any or all of the following:

• Check Valve
• Motor
• Capacitor
• Start Switch

Electrical damage to any of these well pump components can result in a more costly repair, so timely replacement of the pressure switch is the best course of action.

Signs of a Failing Well Pump Pressure Switch

Beyond visible sparking, there are several warning signs that indicate your pressure switch is failing. These include:

• Inconsistent water pressure – Your water flow may fluctuate due to erratic pressure switch behavior.
• Pump won’t turn on or off – A failing switch may prevent the pump from operating correctly.
• Burnt or melted switch contacts – If you inspect the switch and see burnt marks, replacement is necessary.

Ignoring these warning signs can lead to more significant well pump issues and expensive repairs.

How to Safely Inspect Your Well Pump Pressure Switch

Before inspecting your well pump’s pressure switch, always turn off the power at the breaker to prevent electrical shock. Once powered down, remove the switch cover and check for:



• Corrosion or rust on electrical contacts
• Burn marks or blackened areas
• Unusual buzzing or clicking noises when powered back on

If you notice any of these signs, it’s time for a replacement. If you're unsure about performing this inspection yourself, a professional well pump technician can safely diagnose the issue.

Can I Prevent My Well Pump from Sparking?

Yes! Regular well pump maintenance can help prevent pressure switch failure. Here are some proactive steps to take:

• Schedule annual inspections to catch minor issues before they become costly repairs.
• Keep the pressure switch clean and dry to prevent rust and corrosion.
• Monitor your water pressure for any sudden changes that might indicate a problem.



Preventative care can extend the life of your well pump and minimize unexpected breakdowns.

Frequently Asked Questions

Many well water pump owners want to learn more about well pump sparks. Here you will find the answers to the most common questions:

What causes pressure switch failure?

The most common cause of electrical failure in well pump pressure switches is the degradation of the electrical contacts that signal the pump to cycle on or off.

When should I replace the faulty pressure switch?

Replacing a damaged or defective pressure switch as soon as possible can prevent other costly component repairs or the need for a complete pump replacement.

What can I do if the sparking pressure switch causes other damage to my pump?

Depending on the extent of the damage, you may need to replace additional components or replace the well pump altogether. 

Why Choose Mosman Well Works?

The experienced team at Mosman Well Works specializes in diagnosing and repairing well pump issues, including faulty pressure switches. We have the knowledge and expertise to assess the problem, replace damaged components, and restore your well pump’s functionality. If you're in the Woodbury area, our skilled technicians are ready to provide fast and reliable service. Call or click today to get a quote!