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How do you know if a pressure washer pump is bad?

A man uses a pressure washer pump.

A pressure washer pump delivers the high-pressure water spray needed for effective cleaning. However, these hard-working pumps can experience wear and tear over time. Recognizing these five warning signs of a failing pressure washer pump can help you avoid costly downtime and prolong the life of your equipment:

  1. You experience a decrease in pressure or none at all. A significant decrease in water pressure through the pressure washer hose is one of the most noticeable signs of a failing pressure washer pump. If you notice that your pressure washer isn’t generating the same level of pressure as it used to, and you’ve adjusted the settings and cleaned the nozzle and other pressure washer accessories, it could indicate an issue with the pump. Reduced pressure output may result from worn seals, damaged valves or other internal pump components.
  2. You hear unusual noises. Strange noises such as grinding, rattling or whining from the pressure washer pump during operation indicate potential problems. These noises may signify issues with bearings, pistons or other moving parts within the pump. Ignoring unusual noises can lead to further damage and eventual pump failure, so address them promptly.
  3. You see leaks or drips. Leaks or drips originating from the pressure washer pump shouldn’t be ignored. Whether it’s water or oil leaking from the pump housing, fittings or connections, any sign of leakage indicates a compromised seal or damaged component. If left unchecked, leaks can lead to water loss, reduced cleaning efficiency and potential damage to other pressure washer parts.
  4. The pump cycles on and off often. If your pressure washer pump cycles on and off repeatedly during use, it could indicate an underlying issue with the pump or its components. Pump cycling, also known as short cycling, may result from a faulty pressure switch, air leaks or insufficient water supply. Inconsistent operation can affect cleaning performance and unnecessarily strain the pump motor and other components.
  5. Your pressure washer is old. Pressure washers have a typical lifespan of about 10 years, depending on how frequently you use them. If your pressure washer is reaching the decade mark, consider a replacement before you’re faced with a significant repair. And remember, if a repairs cost more than half the price of a new model, it’s better to replace it than repair it.

Commercial and industrial pressure washer repair services

At Hotsy Water Blast, we offer professional pressure washer maintenance and repair services. We also carry an extensive inventory of pressure washer parts for any pressure washer system. Have your commercial or industrial pressure washer serviced today by contacting one of our nine locations across Western Canada and North Dakota. We’re located in Edmonton , CalgaryLethbridgeRed DeerGrande Prairie, Langley, Regina, Williston and Bismarck, North Dakota.