... Pressure washer soap injector not working. Furnace Packaged Unit/RTU Heat Pump Central Air Conditioner Air Conditioner. Free repair advice! If air gets into the pressure pump, the pressure can cause little mini "explosions" that effectively chip away at the inside of the pump. If the pump is more than a few years old, and you use the pressure washer fairly often, replace the pump. Generac Pressure washer, several problems after service. Over time, this can cause problems with the pump, making an unloader the preferable mechanism to have installed. YAMATIC 2800 PSI 2900 PSI Pressure Washer Pump Horizontal 3/4" Shaft Replacement Power Washer Pump 2.3 GPM for 309515003 308418007 K2400HH and Many Other Models A pressure washer is an outdoor power tool that makes cleaning easier by using a high-pressure spray of water to clean a surface. Catching these pressure washer problems early and knowing what causes them will save you a trip to the repair shop, especially when it comes to the low-water issue. Pressure washers are also handy for preparation work for painting. Find the most common problems that can cause a Generac Pressure Washer not to work - and the parts & instructions to fix them. You get your pressure washer out to do some outdoor washing, you try turning on the engine, and nothing happens. If your washer is losing water pressure … Air in the System-. Even if you don’t have a hot water faucet, water that has been trapped in a hose with sunshine coming down on it can warm up enough to cause this problem. I brought my Generac pressure washer in for service simply because the threads on the fitting that connected to the pressure hose were galled for unknown reasons (I am always super careful). A few factors could be causing this problem. … Here’s how we know what they are: Gas and Electric Pressure Washer Troubleshooting Tips for 20 of the Most Common Pressure Washer Problems There are 20 pressure washer issues that are by far the most common. The #1 reason why a pressure washer begins to run rougher than usual is that the inlet water is too hot. A gasoline engine or electric motor drives a pump, which is supplied by your home’s water supply. Or, you are in position to start washing, you pull the spray-gun trigger, and water doesn’t come out. When you pull the trigger on your pressure washer, if the water pressure is good for a moment but then weakens, you have a surging issue. If the pump is relatively new, and you don’t use ...the pressure washer often, either rebuild the pump or replace the pump seals. Using a pressure washer to clean your car, patio or house is much quicker and easier than using a garden hose. Air in the system will cause sputtering pressure at the exit end of the gun, among other things. Or, you are in position to start washing, you pull the spray-gun trigger, and water doesn’t come out. A regulator performs the same task of keeping the pressure and redirecting water flow, but does not stop back flow into the pump. Over time, this can cause problems with the pump, making an unloader the preferable mechanism to have installed. How to Troubleshoot a Generac Pressure Washer. Support for Generac Power Equipment Looking for a manual or products support for Generac trimmer mowers, wood splitters, or chipper shredders ? A power washer pump that is vibrating, but not chattering could be the result of air in the system or debris stuck in the valves.