Genrac power washer has no sustained pressure

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1. McCulloch napa auto parts Pressure Washers Problems ...

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   McCulloch pressure washers napa auto parts related questions and answers. ... a 7022-140a02 power switch for a McCullouh high pressure washer FH180B.

most pressure washers have packings that can sustain a temperature of 140 degrees although it as strongly not recommended since the pump head heats up when in bypass mode(triggergun closed)best rule for pressure washer is never leave the trigger closed for more than 3 minutes even with a thermal sensor:):)

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How long is your high pressure hose and what diameter as it maybe to long and won,t **** chemical due to back pressure. To test this remove the high pressure hose and run the machine and check too see if any chemical is coming up the pipe. If it does then its a problem with your hose or the adjuster is not going to low enough pressure.

The washer pump is located in the right front fender, mounted infront of the wheel. Remove the front portion of the wheel well splash cover to gain excess. This pump does the work for the front and rear washers. Verify that the pump is working and then check for a pinched hose.
However, if you hear the pump working,as you say, open the hood and take the hoses off the squirter nozzles to see if there is good flow of fluid. If there is, then your nozzles are plugged. You may be able to clean them out with some air pressure. Careful working with the nozzles, as they are plastic and break easy.

Steve

the unloader valve is deffective , this has a small metal rod which activates a microswitch to turn the machine off , replace the unloader valve

probably water flow check filter going into pump there is anut coming out on an angle going into the pump wire gause filter inside if this is clean follow it back to water supply symptoms definately indicate lack of water youdoit

The generator output hooks to the transfer switch. It senses the power from gen or land power and switches accordingly to allow power into the breaker panel.

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there is a screen filter on the washer pump suction line where it draws cleaner from the fluid reservoir, it must be plugging up, this is very common.