Pressure washer runs about 10 minutes then cuts off

could be several things. replace the spark plug and try it again. if that don't fix the problem then the coil may need to be replaced. when an engine gets to operating temperature or hot some times the spark plug or coil will start breaking down and it will die. after it cools off it will start again.

Not enough water VOLUME and pressure to supply the pump with a steady flow of water. Water is cavatating (adding air to the water) and the piston is heating up and jambing. Try using a larger size hose diameter and a shorter hose to supply the pump.

I have the exact same pressure washer and have had the same issues with it. The cure for me was to simply run the washer with the gas cap loose. For some reason the fuel gets vacuume locked and stops flowing into the carb. The fuller the tank is it seems the shorter the time is between the time it starts and the time it shuts off. Or you might find a way to vent the cap. Hope this helps.

Mine is having the same issue...I googled and found this with no answers. I'll update if I can find a cure on my own...
Have you checked your oil level?? Small engines have a cut-off switch if your oil is low...mine is topped off so this is not the solution for me..but it could possibly for you.

Hello. Your carburator is gummed up. Get a can of seafoam fuel additive at the auto parts store and put the recommended amount into the gas. This will clear up the problem in just a few minutes. Joe

try removing the carb bowl and check for dirt/water etc , also if the machine is over heating it may be getting vapour locked

The problem sounds internal (perhaps the temperature cut-off switch or the auto-start-stop switch). For safety and possibly warranty reasons, you should not open the case to investigate or repair; take the unit to your local service center.

"it still needs the choke on when the engine is warm and only runs for a few seconds"
This sounds like a fuel problem such as the carb needs cleaning

Don't rule out fuel pump. Had a 95 do the same, ran great when cool in morning then when it got hot in afternoon, it would quit. Wait 15-20 minutes & go again, sometimes got me home, other times a few more miles until it cooled down again. Luckily I had access to a fuel pressure gauge. Cool in morning had 49 psi, when it quit, 2 psi. Wait 20 minutes, 49 psi again. If you can drive it around until it starts to act up then run into a repair shop for fuel pressure test it will confirm it. If not, they may need it all day to monitor the fuel pressure & confirm it is pump. If your a gambler, change it & fuel filter. One thing I did get was trouble codes indicating a lean mixture, due to starving for fuel. Have you cycled your key to retrieve any codes yet?

-If both compressor and fan motor starts and stop, thermostat is the defect.
- If only the compressor check for your outlet no sign of discoloration, check the voltage if normal, check the defective overload protector of the compressor it its external, or compressor itself is defective