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11hp washer new not sucking up water from barrell with or without lance

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Try putting the machine on mains water pressure first to get rid of any air in the system then try it from a barrell.

Posted on Jun 10, 2010

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1 Answer

How do i fit a new lance to Challenge MH02-1610GO pressure washer


Just the lance or trigger gun! Best of luck to ya!

Sep 23, 2014 | Garden

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Why do i have low pressure?


Maybe sucking air in through a chemical valve (if it has one)
maybe new pump seals
a valve suck open in pump.
worn lance jet.

www.Flowjet.co.uk http://www.flowjet.co.uk/

Jul 22, 2014 | Husqvarna 3300 PSI 3.2 GPM Gas Pressure...

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Washer doesn't reach enought output pressure. motor starts and stops at rendom.


First you have to do is try the machine without load. Attach everything as usual but do not attach the lance. Put on machine with water supply already on. If you close the gun the machine should stop. If you open the gun ( always with out lance)....the machine should start sending the water a bit far. If this is OK....then you have a lnance with a faulty, blocked NOZZEL.
NOrmally the machine stops when gun is released because there is a valve (Spill Valve) that actuates a electrical micro switch. This in turn closes off te elecreic supply...stopping the machine.
If with out lance your problem is still there....then the spill valve is faulty. AS I first said you must be sure that the nozzel is OK, so that you can blame the Spill Valve.
I raely service Spill Valves (Control Valves). I change with a new one. When open the cover using a TORX T15 screw driver....you locate the spill valve where there are 2 wires coming out. Some machines have the spill valve incorporated with the head and the intake and delivery valves unit. This I advize to change with new parts. These all in one heads are very good because at one go you change the spill valve and the other valves in one go.
Therefore in a few words you either have a blocked nozzel...or you have the spill valve faulty.
Also the delivery valves could be blocked...thus creating pressure inside and activating the spill valve to close off the electricity. You can also try to start the machine without gun and hose attached...but always with water being fed. NEVER put on a power washer without water being fed. And never store a power Washwer withpressure in it.
Fulltech.

Apr 25, 2011 | Karcher K2.26 Electric Power Washer

1 Answer

On high pressure it pulsates


First you have to do is try the machine without load. Attach everything as usual but do not attach the lance. Put on machine with water supply already on. If you close the gun the machine should stop. If you open the gun ( always with out lance)....the machine should start sending the water a bit far. If this is OK....then you have a lnance with a faulty, blocked NOZZEL.
NOrmally the machine stops when gun is released because there is a valve (Spill Valve) that actuates a electrical micro switch. This in turn closes off te electric supply...stopping the machine.
If with out lance your problem is still there....then the spill valve is faulty and the machine starts pulsating. AS I first said you must be sure that the nozzel is OK, so that you can blame the Spill Valve. When the spill valve is faulty the machine pulsates at high pressure.
I raely service Spill Valves (Control Valves). I change with a new one. When open the cover using a TORX T15 screw driver....you locate the spill valve where there are 2 wires coming out. Some machines have the spill valve incorporated with the head and the intake and delivery valves unit. This I advize to change with new parts. These all in one heads are very good because at one go you change the spill valve and the other valves in one go.
Therefore in a few words you either have a blocked nozzel...or you have the spill valve faulty.
So I advice again to try the machine with out the lance. If when gun is closed machine stops and stays that way ..it means the spill valve is doing its job. If when putting back the lance and the pressure starts to pulsates...the lance nozzel is faulty and thus causing simptyms on the spill valve. Also try to use machine with a new lance...having a new nozzel.
Fulltech.

Feb 18, 2011 | Karcher K2.26 Electric Power Washer

1 Answer

Have a 11hp power washer pump not sucking water, how do i fix ?


Hey there...

Is the washer a direct drive or belt drive unit? If it is a direct drive ( the pump bolts directly to the engine) then the pump needs to be force fed the water, either by city pressure or a transfer pump. If it is belt driven, the lower rpm's should pull water, so more detail would be needed...


Feb 01, 2010 | Honda 8 HP Engine

2 Answers

Hausfield Campbell pressure washer 2300 psi .Water not flowing through hose to gun


hi try statring the machine with no hose on, if ok add the hose to the machine without the gun and lance. then try the gun on its own WITHOUT THE NOZZEL in the lance. just elimate things regards

Jan 23, 2010 | Campbell Hausfeld PW2575 Pressure Washer

1 Answer

No pressure on certain settings


Dear Osville,
It is not clear what type of lance or nozzel you have. You said that the machine works fine with the circulating water jet(the turbo). So it seems the machine is fine. I do sometimes service variable nozzels and variable lances. But the best solution is to replace nozzels and variable nozzles and lances with new ones. Regarding the fan spray setting it could have no pressure because it might be in the chemical setting. The chemical setting lets out a fan shape flow of water, but with less pressure. The chemical system only works on low pressure in domestic washers, that is why it needs a low pressure flat spray. The pencil jet has 2 jets comming out because if it is a lance or nozzel with ball bearings, these ball bearings must have stuck in a wrong position. Also 2 jets can come out, due to a damaged nozzel hole.
Altogether, the best advice is to buy a new nozzel or lance...which ever your machine uses. All Karcher machines have their own specific nozzels, lances and high pressure hoses. You cannot change these from one model to another.
Regards,
Fulltech.

Apr 29, 2009 | Alfred Karcher K 5.93 M Electric Pressure...

1 Answer

I have an old kew pressure washer and when I pull the trigger on the lance, the water jet is only at mains pressure.


Dear dennis_partr,
In general all pressure washers have a control valve. This is sometimes refered to as the Spill Valve. When the trigger is pulled, the spill valve is in normal position. When the trigger is released, the spill valve compresses to let water circulate from its bottom part. If when the trigger is pulled and the bottom part of the spill valve does not close, then water keeps on circulating and hence no pressure. In this case change the spill valve with a new one. Also there could be a fault in the sucktion valves. If the sucktion vaves do not close, also water keeps on circulating. One also can examine the delivery valves. If these are not closing, then water is being sucked while delivering. Hence no pressure. Another cause but very rare, is that the swash plate that is pushing the pistons got loose. The electric motor will be turning, but the pistons stay in the same position.
I mentioned many causes, but usualy it is the spill valve. If with a new spill valve, there is still no pressure....then you must tackle the sucktion and then the delivery valves.
I wish to add that I assume that you have the correct lance and correct nozzel size. A worn out nozzel, will result in low prssure too.
Regards,
Fulltech.

Apr 21, 2009 | Electric Garden

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