Question about Karcher G3025OH Pressure Washer

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Have a karcher 9 hp and kerosene/diesel burner when turned on it just dumps the wwater out of the ''overflow'' or ''reliefe'' hose type valve that is located on the outside of the top of the burner any ideas?

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Posted on Jan 02, 2017

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SOURCE: karcher washer went dead

Dear jimbocom,
The problem is that the spill valve got stuck. When the machine is working and the gun is closed, a valve( spill valve) moves with the accumilated pressure and switches the machine off. So what happened is that when the spill valve did its job, it found no water...and remained stuck. This leaving the machine in an off position. Service and lubrication to the spill valve must be done or completely replacing with a new spill valve. In my opinion you have no serious damage, but this job must be carried out by an expirienced technician.
Regards,
MG.

Posted on Nov 05, 2008

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SOURCE: Karcher pistol gun has broken

Make sure you DO NOT have a check valve (this is what stops your hose running when you disconnect from the hozelock fitting) in your hose pipe system, This will send a shockwave through the pressure washer and destroy the fitting you mentioned. They can be easily removed.

Posted on Jul 25, 2009

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1 Answer

My karcher isn't giving me hot water why? It's a hds 601c


Morning Chris Taylor,

You have an igniter/burner coil inside your system that has to be
functioning properly to have good combustion going inside the coils of your heater unit (very bottom).

I tried to pull the documents to see if yours was kerosene powered (like mine: not a Karcher)... but could NOT pull your HDS 601C up on the company site (Karcher.com, sorry... It's me & my new PC).

Poor water = de-lime water coil procedure

Cool water = No combustion, check kerosene, oil (burner fuel)... filter... (etc.) and check your spark!

If your air supply is insufficient to support great combustion your ignitor & fuel nozzles can get heavily built up in soot. My manual says to clean it with detergent & water... I have only ever used Berryman choke & throttle body cleaner.

All the precautions... don't hurt yourself!!

Hope this helps...

KARCHER HDS 601c ECO STEAM CLEANER BOILER HEATING COIL ELEMENT HEATER...

Operating manuals

http://www.ultimatewasher.com/download/hot-water-manual.pdf

May 01, 2016 | Karcher Garden

1 Answer

Worcester 35cdi overflow problem


if by overflow pipe you mean pressure relief valve either your expansion tank is full and needs to be drained if that type or replaced if bladder type. but if 1.5 bar is normal pres reading then the pressure relief valve is bad (it is a wear item )

Nov 12, 2013 | Heating & Cooling

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

2 Answers

My diesel burner on my pressure washer smokes real bad. Could I have a leak, if so where would that leak be? It is a alkota


HI, here is a few pointers that may help you ,
  1. if the smoke is white , that usually indicates water in the diesel, empty fuel tank and replace/clean the fuel filter
  2. if the smoke is black that indicates excess diesel or unburnt fuel , normal fuel pump pressure is around 8 to 9 bar (you will need a gauge to check this ), another cause is often failure of the fuel nozzle to correctly atomise the fuel (remove nozzle and clean (a small sintered fuel filter inside this )
  3. the burner electrodes should have a blue angry looking spark across them ,when checked (BE VERY CAREFULL WHILST DOING THIS as in effect you have a flame thrower ), usual gapping distances are around 6 mm
  4. the electrodes should be sharp pointed and not rounded or pitted
  5. a final cause is commonly a leaking fuel solenoid which can cause fuel to drip into the burner/heating coil assembly ( replace the solenoid
as you can see this can often be a complex and dirty job to repair and it might be better to contact a local service agent in your area .
Hope this helps

Jan 28, 2010 | Briggs & Stratton Pressure Washer...

1 Answer

REMOVE PUMP


Look for a black plastic cover with a silver snap on top; pry off the silver snap and lift off the plastic cover; next remove the two screws on the top plate then pull out the piston inside - if unable to lift out, start unit and watch it pop out - coat piston with lithium grease and reinstall.

The sticking pressure relief valve is somewhat common with the Karcher 2400HH series pressure washer, it is caused by hard water and lack of grease on the pressure relief valve. To remedy the problem, use silicone (plumbers) grease to lube the o-rings on the unloader valve part# 4591040 (karcher calls it a spill valve on the parts list) You can click on the link below for more help. A helpful note, if you store your pressure washer for long periods of time, than you should draw anti-freeze into the pump for storage... make a short 2' garden hose and connect it to the inlet of the pump, with a funnel stuffed into the end, poor anti-freeze into the hose and start the engine, this will draw the solution into the pump and protect it from corrosion and keep all internal parts lubricated (plus keep the pump from freezing).

Here is a link that might be useful: Pictures of the Karcher 2400HH Spill Valve


Dec 15, 2009 | Alfred Karcher K2400HH 5 Hp 2.5 Gpm @ 2400...

2 Answers

Karcher pistol gun has broken


i do not think there is a pressure release valve , sounds like the plastic inside the pistol has become brittle and has failed under pressure , you dont say how old the pistols are ? and if you run strong detergents through them .

May 26, 2009 | Karcher PSI Electric Pressure Washer

3 Answers

KARCHER HDS 1000 de


Hi Jim,i have the same unit to,can you tell me are you connecting to mains water via the small black header tank at the back next to the boiler or is it connected straight to the pump head inlet?
Theres more than one reason i'll just start with this one 1st.
chris

Aug 08, 2008 | Karcher 2500 PSI Pressure Washer

1 Answer

No pressure to handle


sounds as if pressure relief valve is stuck open. you will have to disassemble relief valve and clean or replace.

Jun 22, 2008 | Karcher 2500 PSI Pressure Washer

2 Answers

Karcher HD 655 S Does not come up to full pressure


yes...check the check valve. A one-way directional valve, this part is also known as a DUMP valve. It opens when too much pressure builds in the hand wand (when not spraying water) in order to protect the pump, by returning the high pressure to its source reservoir. I suspect the DUMP valve is stuck in open condition (or nearly open).

Jun 10, 2007 | Karcher 2500 PSI Pressure Washer

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