If it is a twist coupler which won't turn, i use a pipe wrench or channel locks. If it's a quick coupler socket and the sleeve won't pull back, the quick coupler plug is bad. If you can't get them apart, both should be replacedTodd Lehkereplaced.
SOURCE: stalls when triger released
the problem may be the oil. if the oil is fine then try crimping your hose to let less water pressure through. if that still does not work lowes or home depot will fix the problem cheap. thank you for using fixya
SOURCE: Had the Northstar 3000 psi Pressure Washer for 2
It is easy to check if your hose and quick connects are supplying enough water to the pump. Your pressure washer gallon per minuite requirements are printed on the machine and also on the pressure tips in GPM. Your post indicates 2.5 gpm but check your documentation of GPM. Next remove the tip from the wand and connect your hose with current quick connects to the machine. Start engine and direct the pressure wand into a bucket for exactly one minute. Measure the amount of water in the bucket, it should be very close to stated gallons. Do the same test with tip installed and compare measurement. If pump is starving for water you will not get proper amount of water in the bucket and the water hose will collapse. Two to four gallons of water per minute is not very demanding and should be delivered even with very small opening. You can even just direct the hose into the bucket for one minute and check how much water your hose is capable of delivering. I believe that you will find no problem with water delivery to pump. I would certainly enlighten Northern with your findings and question their evaluation. When you start using your pressure washer again try using it at lowest pressure to get the job done. Lowering the pressure to about 75% of max will increase the life of the pump and engine. Good luck with you pump
SOURCE: washer stops when handle released
unloader valve not functioning properly causes pressure overload and stalls engine
SOURCE: northstar pressure washer randomly gives pressure
Hi:
You need to find the bypass (unloader) valve and grease it with a good waterproof grease. Sorry, I cannot find a pic for you
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