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Thermal pressure relief valve is wide open an won't shut off on a general ,190 Intel pressure washer wrong

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  • Expert
  • 165 Answers

Replace thermal relieve valve

Posted on May 15, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

david04928
  • 102 Answers

SOURCE: north star petrol pressure washer.

Sounds like the regulator is sticking or is airbound. loosen the water connection and then tighten it back. Could also be that the trigger gun is faulty or needs adjustment. Hope this helped

Posted on Mar 15, 2009

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

  • 174 Answers

SOURCE: Reconditioned B&S pressure washer will not restart

Some suggestions:
Is the gas old? If in doubt replace it.
Try removing the air filter and spraying carburetor cleaner into the carb Then try starting it. If it runs for just a minute, then stops, the carburetor needs cleaning.

Posted on Sep 20, 2009

wmpcs
  • 100 Answers

SOURCE: My Honda pressure washer is leaking out of the

Does the thermal valve just screw into the pump head, if so what size thread is it? I have 1/4, 3/8, 1/2 in stock.

Posted on Oct 25, 2010

  • 2428 Answers

SOURCE: When I start my pressure washer on full choke it

You need to take the float bowl off the carb from the bottom . You haven't given a lot of information about who did what to the carburator but somebody must have screwed with the float pisition for this to be happening . The way all carburtors work is the same you have the float bowl and the floats and on top of the floats is a valve called the needle valve. Now the neddle valve is there to stop the flow of fuel into the float bowl when the engine is not in a high damand cycle for fuel like start up or ideal the choke shuts the air off and gives more fuel at start up .However when the engine is running and the float bowl is being filled by gravity feed from the gas tank the floats will move up do to the amount of fuel in the float bowl and should shut the fuel from the gas tank off to the float bowl until the engine can burn the fuel and drop the float level enough to make the neddle valve open again to supply more fuel for the engine to run correctly its a never ending cycle . You need to adjust the floats and likely clean the carburator don't mess with adjustments there mostly automatic when the engine is running

Posted on Sep 18, 2011

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1 Answer

Why does my Simpson pressure washer mega shot V3100 continue to build pressure when I release the gun and stays on high speed


There is a thermal pressure relief valve on the pump that opens when the pump starts to heat up.

Jul 04, 2016 | Simpson Garden

Tip

What is a Thermal relief valve?


The thermal relief valve is a valve that opens when the water inside your pump gets too hot. When you are not pulling the trigger on your gun, the water is circulating inside the pump. After a little while the water starts getting hot from the friction of the moving parts. When the water gets too hot, the heat starts to damage the water seals. What a thermal relief valve does is, at about 145 degrees it opens up dumping the water inside the pump on the ground. As the water pours out, new cool water flows in from the garden hose, cooling off the pump. I personally recommend a thermal relief valve to everyone I sell pumps to. Not all pumps come with a thermal relief valve. For the price (between 10 and 15 dollars) they will save you a lot more than they cost.

on Dec 21, 2009 | Garden

2 Answers

POP OFF VAVLE ON HEAD KEEPS POPPING UP


The over-pressure relief valve may be defective if the valve is opening before the desired tank pressure is reached. If not, then the shut-off pressure adjustment (if there is one) may be set wrong. You'll need to find out from the manufacturer exactly what static tank pressure the compressor is designed to provide and then determine if it is working correctly. If so, then the relief valve might be defective. DO NOT attempt to defeat the relief valve under any circumstances - it can result in compressor damage or a dangerous tank failure.

Oct 06, 2014 | Porter Cable 175 PSI 80 Gal. Oil-Lube...

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Water spewing from therma pressure unit


If you're referring to the thermal relief valve, it is probably bad from freezing or popping open to many times (from running with gun closed too long)

Sep 16, 2014 | Garden

1 Answer

Where to install thermal relief valve


It should be the last threaded hole right before the water enters the pump itself, on the low pressure ( inlet) side, most pumps have 2 different size holes 90 degrees from each other, commonly 1/4 and 1/8 in.

Dec 13, 2012 | Honda Karcher G2400HH-R Pressure Washer

1 Answer

Leaking pump protector valve in a Landa SEA series pressure washer


"Protector Valve" could mean several different things. There is "pop-off" safety pressure relief valve and there is a "Thermal Relief Valve". Your pump could be protected with both, or only one of these. A pic would nail it down quickly.
Don

Mar 15, 2012 | Garden

1 Answer

Hi, My Dewalt 3100 pressure washer pump wash leaking water from a check valve or overflow plug Do you know whats wrong?


The Dewalt 3100 came with 2 different pumps. The Blue Cat pump and the oil free pump that was made by DeWalt.
You may just have a bad Thermal relief Valve on the unit.

You can find the parts diagram at www.allpartsinc.com

Sep 08, 2011 | Dewalt DPH3100 Gas Pressure Washer

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

Honda GVC 160 lost pressure - noticed small black valve (back - rear) after pressure builds up , short spray then nothing - hot water comes shooting out the black valve - did something pop off?


The small black valve is called a thermal relief valve. If it is open you will have no pressure. If the water is getting hot enough to pop that valve, there might be internal problems with the pump.

Nov 22, 2009 | Karcher 2500 PSI Pressure Washer

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