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Pressure switches and flow switches

Pressure switches and flow switches play a vital role in operating a pressure washer safely and efficiently. Fortunately, Hotsy Water Blast designs hot water pressure washers with flow and pressure switches in place to automatically turn essential functions on and off, so your operators don’t have to. We also stock these switches in our large parts inventory. Contact us today to find a Hotsy Water Blast location near you.

Pressure washer switches

 Pressure washer switches monitor the pressure within the system and respond when it reaches a set pressure threshold, typically between 500 and 700 PSI. When pressure rises above the set point, the switch either engages or disengages the pump, ensuring the water flow matches the demand. In pressure washers, pressure switches are vital for maintaining consistent pressure and preventing over-pressurization, which could damage the system or pose safety risks.

Pressure washer flow switches

 Flow switches, on the other hand, activate when the water flow reaches a certain rate or falls below it. In pressure washer applications, flow switches are integral for ensuring that the water is flowing at the required rate before allowing other components, such as the burner, to engage. They’re crucial for activating the system when the trigger gun is used and deactivating it when the gun is released, preventing unnecessary operation and conserving energy.

Benefits of pressure and flow switches

Pressure and flow switches play an essential role in pressure washer cleaning systems for a couple of key functions.

First, switches are responsible for shutting off the main burner flame when the trigger gun or other pressure washer attachments are closed. This action saves fuel and prevents excessive pressure buildup within a closed vessel, reducing the risk of dangerous situations.

Second, a pressure washer switch starts the unit when the trigger gun is applied and shuts it down when the unit isn’t running, protecting the pump’s seals from damage by excessive pressure in the system.

Troubleshooting with pressure and flow switches

 If the burner in your hot water pressure washer isn’t working properly, you could have an issue with your flow or pressure switch. Here are a handful of troubleshooting tips:

  • Check the water flow rate. Clogged filters, kinked hoses or partially closed valves can restrict water flow, preventing the switches from activating.
  • Verify the pressure settings. Adjust the settings if needed to match burner requirements.
  • Check the switch wiring. Inspect the wiring for loose or damaged connections. Secure all wires.
  • Activate the spray gun. Listen for a click or vibration. If you don’t get a response, you could have a faulty switch.

Pressure washer solutions in Western Canada and North Dakota

At Hotsy Water Blast, we design custom pressure washing and cleaning solutions tailored to your business’ specific requirements, along with top-of-the-line pressure washer detergents, parts and accessories. With nine convenient locations throughout Western Canada and North Dakota, we’ve got you covered. Whether you’re in Alberta (Edmonton, Calgary, Lethbridge, Red Deer, Grande Prairie), British Columbia (Langley), Saskatchewan (Regina), or North Dakota (Williston and Bismarck.). Contact us today for more information or a free quote.