Question about Porter Cable Cable Premium Pressure Washer PCH2425

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PCH2401 Pressure washer and the engine kills with pressure backup when trigger not squeezed...is the thermal relief valve in need of replacement? or could it be something else?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

woobie dog
  • 1273 Answers

SOURCE: 2-yr old troy-bilt pressure washer with honda

It sounds like an air lock. Try this: With the machine off, connect the hose to the washer and let it run for several minutes to get all of the air out of the hose, and to purge any air out of the pump. Shut off the water, and connect the high pressure hose, but not the gun. Let the water run for several minutes. stretch out the HP hose and make sure that the air is displaced. Shut off the water, connect the gun, and purge as before. Now crank it washer up. As quickly as safe to do so, open the trigger to keep water moving through the washer. It should come up on pressure very quickly. It is better during normal operation to keep water moving through the system. When I am through for a while, I shut down my washer, but leave the trigger depressed to allow the pump to stay full of water, and cool. This prevents further problems when I restart it.
Hope this was useful.

Regards --W/D--

Posted on Jul 17, 2009

  • 7 Answers

SOURCE: No pressure

you will have to try the following start up purge up onece with just water then start the powerwasher if that does'nt give u pressure ther is gaskets inside the pumping sometimes 4 to 8 of them these might be to wore down to hold pressure if u can locate the pump and desemable it run it to ur local dealer tell u need new gaskets put into it

Posted on Apr 09, 2010

  • 760 Answers

SOURCE: engine manual for the Porter Cable pcv 2250 pressure washer

If you need an engine manual, then look up the manual on the engine manufacturer's web site. eg Briggs & Stratton, Honda, Techumseh. Porter Cable manual would just have cart and pump info.

Posted on Jul 23, 2010

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1 Answer

High pressure wont shuy off


do you mean it keeps trying to build pressure even when you release the trigger on your wand???that is a problem with your unloader....also checkout your shutter valve and replace the oring on it. You will need the diagram here to know what parts Im talking about Pump Breakdowns and you can order parts here Pressure washer parts catalog quick links Pressure Washers High Pressure...

Jul 19, 2014 | Annovi Reverberi 2400 Ar Pressure Washer...

1 Answer

Pressure Washer


any leaks from connection at pump to gun and wand assembly if so the valve is detecting leakage and open up again without u squeezing trigger it builds up in the head.if your trigger gun is leaking internally then you will need to replace the gun this unit uses a trap pressure unloader valve

Jul 15, 2013 | Garden

1 Answer

Portercable Pressure Washer Model PCH2401


when the trigger for the wand is not pulled , there is a pressure relief valve that bypasses the water in the pump and so there is no pressure until the trigger is pulled again.
with the pump getting hot and not being able to pull the motor to restart, it indicates that that pressure relief valve has jammed ( faulty ) and the pump is running at full pressure all the time
That will heat the pump and stop the engine from restarting
That valve is where I would start looking for a problem

Apr 25, 2017 | Porter Cable Garden

1 Answer

The thermal relief is spraying water, do I need a new pump or is repair possible?


First just try replacing the relief valve. This valve will do this if the pump overheated from being in bypass (trigger closed) to long, if it freezes or if there is a sudden large increase in pressure. If the valve did its job it will have prevented damage to the pump and replacing it is all that will be necessary to get you up and running again. If you replace it and you find you have low pressure then you will need to rebuild the pump or replace the unloader valve. If you have any questions please feel free to contact me using the information below.
Sincerely,Aron KerrLanda Northwest, Inc.www.landanw.comaron.kerr@landanw.com800.247.8103

Apr 13, 2012 | Annovi Reverberi RMV2.5G27D Pressure...

2 Answers

ENGINE RUNS FINE WHILE HOLDING THE WAND TRIGGER BUT , WHEN I RELEASE THE TRIGGER THE ENGINE STALLS OUT


you have a faulty presure relief valve. it is building up presure and killing the engine.

Jun 16, 2011 | Devilbliss DeVILBISS Devap DVH2600...

1 Answer

Lost pressure let handle go spits out 1 second of pressure then no pressure


What you are describing is an unloader valve failure. The unloader valve (also called a spill valve or safety pressure relief valve) is sticking in what is known as bypass. Your pump is able to build pressure but when the trigger is squeezed, rather than directing the flow up to the nozzle it is looping the pressure back through the pump as it does when you release the trigger. Depending on the specific brand and model you will need to either replace the unloader or lubricate it if it is a Karcher with a spill valve. If it is a Karcher there is a known issue with the following models:

K2300G1
K2400HB
K2400HH
K2401HH
K5800G
K5800G

All of these have an issue where the spill valve sticks and will need to be lubricated with Vaseline or lithium grease. You can view a guide for this process at http://www.landanorthwest.com/dms. Select Maintenance/Karcher/Pressure Washers/All/Spill valve lubrication.

Sincerely,
Aron Kerr
Landa Northwest
www.landanw.com

Mar 08, 2011 | Ridgid Diehead Complete 11R 12 NPT

1 Answer

I have a honda excel 2500 psi , where would the pressure relief valve be located?


Many of the excel units don't come with a pressure relief valve but instead a thermal relief valve, it really depends on the model number of the pressure washer. You should only replace the thermal relief valve if it is leaking.

Sep 06, 2010 | Honda Karcher G2400HH-R Pressure Washer

1 Answer

Was using Karcher and then suddenly no pressure. Motor seemed hot


not sure about this model but some of them had mototrs that ran constantly wether the trigger was squeezed or not.
on these models there was a pressure relief valve just inside the water hose inlet connection which have been know to work loose.
if not the above type the discount the relief valve
the water pump usually comprises of 3 pistons and various valve assemblys you would need to take the pump apart and check theses parts some had three large nuts that contain the valves .
hope this info is of some use to you

Apr 04, 2010 | Karcher K2.26 Electric Power Washer

1 Answer

Laking below sprayer large rubber piece covers area that is leaking


Sounds like your thermal relief has popped and is not reseting. These are an easy replacement. Usually availble as a "thermal relief valve" in sizes 3/8npt or 1/4"npt ..national pipe thread. Might also mean that your pump is overheating. Check and replace the pump oil. Make sure you do not allow this sprayer to sit and run without triggering the gun every couple of minutes.

May 01, 2009 | Garden

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