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Pulsating electric pump - Karcher G 2600 VH Gas Pressure Washer

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My electric pressure washer pump is sucking air


Dear Sir,
There is a valve called the spill valve. When the gun is closed, this valve is activated by the pressure built and switches off the machine.. Now if the O ring seals of this valve are damaged, the pressure goes up and down, making this valve moving out and in, at the same time putting on and off the machine. This is the result of the pulsations. All one has to do is change this spill valve. Though one must open the machine to do this and may require technical knowledge.
Regards,
Fulltech.

Feb 26, 2014 | Garden

1 Answer

Landa pressure washer LT 4035-4000 psi. Why is it losing pressure and continually pulsating?


If the pump is pulsating rapidly most likely valves are leaking or debris under valve keeping one or more from closing. If the pump pulsates slowly, comes up to pressure then low pressure then repeats, problem is pressure regulator /bypass. Or you could have a combination of both. Try lowering the pressure to lowest setting to see if slow pulsation stops. As parts age within pump and debris hinder operation you can no longer operate at full pressure. To make the pump last, use highest pressure as needed and everyday work using only 60 to 75 percent of capacity.

Mar 19, 2013 | Garden

1 Answer

Pressure pump keeps pulsating when trigger not pressed


There is orobably a minor water leak on the output side of the pump. The pump is sensing a pressure drop due to the leak so it will run for short periods to maintain the pressure i the output line.

Aug 20, 2010 | Karcher PSI Electric Pressure Washer

1 Answer

My Hayward pump is pulsating rather than keeping a


make sure all intake unions are tight you have a air leak or top pump seal is bad

Jun 09, 2010 | Jandy PHP High Head Pump 2 HP Up rated

2 Answers

Pulsating when idle


The motor doesn't pulsate when you are spraying and pulsattes when not spraying is normal otherwise the pressure will just keep building and burn out the pump. However, if you are not using the sprayer right away then the unit should be shut off until your ready to start again.
I hope the answer is helpful, please rate if the answer has helped in any way. Good Luck and have a great weekend.

Apr 03, 2010 | Karcher K 3.98 M Electric Pressure Washer

1 Answer

Pressure washer is pulsating when powered on


it just the presure building back up ,it will last years doing this,i would not worrie as replacing the presure pump will only be a temp fix and it will do it again ,most washes do this after a year or lots of use.

Dec 31, 2009 | Karcher 1750 psi Electric Pressure Washer

1 Answer

I have a K3 78M electric unit . The motor pulsates


This sounds like an internal leak. If you are handy enough here is a schematic. On B@ it could be #25 is sticking or the valve inside #8 is leaking or the water seals #18 need replacing or #1 is leaking

Aug 18, 2009 | Karcher Garden

1 Answer

Pump is pulsating , not pumping full pressure , water supply and screens checked out ok pump model sjv3g627-1 on a briggs 6.5 hp


Pulsating is usually due to a leak. It could be the pump leaking or the hose, gun or wand leaking. Is there water coming out of these anywhere it is not meant to?

It could also be a valve is not closing properly or a seal needs replacing.

Aug 06, 2009 | Garden

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