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Water does get through but without pressure. No pressure at all.

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Why doesn't it work when the water hose is attached?


Pressure washers can only be started/run with water attached. No water burned out pump in 5 seconds! If pump puts out high pressure water without wand/hose attached, bad wand or hose, if not bad pump. Replace pump.

Apr 05, 2016 | Garden

1 Answer

Powerwasher pw1800u


The water pump is pretty much shot! Did you crank the pressure washer without the water being on? Most times you see this when this occurs.

Jul 13, 2013 | Garden

1 Answer

I have lost the pressure of water but the motor is still working.


If the motor was ran without the water being attached to the washer it would crack the pistons which is what creates the water pressure for you.

Aug 18, 2012 | Karcher K 391m Pressure Washer

1 Answer

Dishes not clean


It sounds like two possible problems.
1. A clog in the water system from previous food is restricting the spray pressure of the water.

2. Water pressure pump that provides the spray wands pressure is either stuck or inoperable.
Without spray pressure and the hot water, the food is gonna stay.

Dec 18, 2011 | KitchenAid KUDS301V Dishwasher

1 Answer

Cant pull start the pressure washer


Turn water off to the pressure washer, release pressure by applying hand pressure to sprayer. After water pressure is released, turn water back on (should not have motor running without water.) then try to pull start.

Jun 18, 2011 | Honda Karcher G2400HH-R Pressure Washer

1 Answer

Engine runs , not getting any water flow when trigger pressed.


Disconnect hoses.
Look for kink in water hose.
Check incoming water connection for filter washer
Replace filter washer
If you don't have a filter washer, put one in.
Hook up water, and turn on
Water should come out other side of pump.
Turn on machine.
Do you get pressured water out of pump.
If no pressure, then pump is suspect
Hook up washer hose without gun
Does pressure come out of washer hose
Finally, the gun trigger may be bad.

We had to buy guns now and then.
Search for pressure washer guns
Following link shows guns we used:
http://www.ultimatewasher.com/pressure-washer-trigger-guns.htm

Oct 25, 2010 | Karcher G2650HHR Gas Pressure Washer

1 Answer

Water goes thru. have hydrulic oil to level. gun semas to stick on. NOT GETTING ANY PRESSURE AT NOSSEL.


Hydraulic oil?
Is this a pressure washer?
Pump should be half full of SAE20 or SAE30 non-detergent motor oil.
Engine should have 10W30 motor oil.

If you have a pressure washer ... and not water is coming out end of gun:
Take all hoses off machine.
Look at incoming water hose connection.
The should be a filter washer.
Clean or replace filter washer.
Hook up water and turn on water.
Water should come out other side of pump.
Turn on power washer and see if water coming out of pump is pressurized.
Now hook up pressure hose without gun.
Turn on pressure washer and see if water comes out of hose and is pressurized.
Finally, the gun may be bad.
We used to replace guns when they went bad.

Oct 24, 2010 | Dewalt 3800 PSI Pressure Washer

1 Answer

Engine runs. No water thru hose. Pressure valve(???) underneath has water coming out of it


Sounds like bad seals. But first take the hose off and see if water comes out the outlet without the hose there.

Nov 15, 2009 | Honda Pressure Washer PSI 3000

1 Answer

Water pump cycles to often. When pump turns on, pressure gauge shoots up to 50 lbs right away without pumping much water.


Sounds like a well fed system with a pressure tank that has lost its air charge. Check for a water tank with a tire pressure type stem fitting, should also have a pressure gauge. Most newer tanks have a rubber diaphram inside to keep the air and water from mixing, but a lot of older ones don't and the newer ones will develope a leak that will produce the simpoms you describe. Try adding a few pounds of air pressure to the top of the tank and check for leaks. Warning: Compressed air can escape explosivly if the tank is badly rusted out but if your water pressure goes to 50# without the tank leaking, it should be safe to add up to 25# of air. The air charges the water system and allows the pump to shut off until enough water is used to lower the pressure back to set points on the control switch. It's not a good idea to adjust the set points on the switch unless all parts in the system have been checked for safety to the new pressures.

Aug 13, 2009 | Water Heaters

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