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Pump will prime but only on highest pressure setting or build pressure in low pressure settings and not till you get to the highest pressure setting on the pressure knob then the pump will prime and w

Thought it was a clog in the main hose to gun but took off the hose from pump and the same thing occurs

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Posted on Jan 02, 2017

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SOURCE: Wagner Paint crew - No pressure

In order of likelyhood:

1. There is an inlet valve where the paint first enters from the hopper. With the machine off, you can poke your finger all the way down the hole. It's spring loaded and will depress abouta quarter inch. If the inlet valve is stuck no paint will pump in PRIME or SPRAY position.
2. In SPRAY position. Motor runs for a few seconds then turns off. This means the pump is working. When you pull the trigger, if you get poor pressure, the problem is in the gun. Unscrew the handle and remove the filter. Clean out everything you can, and replace filter if necessary. Also try turning the spray nozzle 180 degrees and spray to clear if necessary.

there are more things that can go wrong, but these are the most likely.

Posted on Dec 14, 2009

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SOURCE: How to remove the Prime/Spray

You can unscrew it without removing the plastic part - just use thin vice grips and get a piece of the metal nut, unscrew down (counter clockwise) and it should come off with average pressure. I checked mine, not much to go wrong there, then screwed back in. I have similar problem with pressure, it is likely a worn O ring. Seems to be in the outlet valve as I replaced some of the inlet valve rings and same effect. Research says the outlet valve is the problem if paint comes out of the squeezed nozzel while in Prime mode, which mine does, and is likely not building the pressure as some paint is flowing back through the worn outlet parts.

Posted on Feb 25, 2011

  • 128 Answers

SOURCE: In trying to spray oil

How does it spray if you dump the paint out and put paint thinner in the cup? If it sprays paint thinnner, but not the paint, your paint is too thick. Thin it down by 25% and try a little. Keep adding thinner until the paint sprays out of the gun in an acceptable manner. Your gun probably has a 1.1,or 1.4 fluid tip. this is for spraying lacquers or automotive paints that are very thin. to spray oil based paint, your would need a 2.0 or 2.5 or bigger. not really what this gun was made to spray.

Posted on Jul 20, 2011

Testimonial: "Thank you. It does spray thinner normally...I guess I just didn't add enough thinner to the paint, I'll get a larger nozzle too."

  • 885 Answers

SOURCE: Clogged Titan 400 Airless Paint Sprayer

There are two check balls in the pump that make it work. If either are blocked or stuck it will do what your are stating. Tapping the pump with a hammer will work to free check balls that are stuck to their seat by corrosion but will do nothing to remove paint chips or dried paint that prevent them from working properly. You can try forcing water throught he pump while it's running with a garden hose to see if that will clear any problems. If that doesn't do it you will have to disassemble the pump to clear anything that's keeping it from working. If you're familiar with the workings of a paint pump, it's not hard but be careful not to damage the packings, piston or cylinder.

Posted on Oct 02, 2012

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Ryobi 725r trimmer carburetor adjustment


Turn both low and high adjustment screws carefully clockwise all the way in - do not overtighten.. Then back out each two full turns. Set the idle speed control for highest setting. Prime and start and let it run and warm up for about 15 seconds - then lower the rpms a tad and then adjust the low end screw for highest rpm. Then reset the idle to lower reasonable level. You may have to go back and forth with those two adjustments till it runs fine at low idle speed..

Then accelerate to highest speed and set the high adjustment for highest rpm. Then go from idle to high speed. If not smooth a small adjustment on the high speed screw is in order. Keep doing that until you get a nice smooth transition form low speed to high speed.

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I just installed new water pressure tank,it builds pressure to max then water runs low on pressure till pump kicks back on.whats wrong


Have to set the pressure switch
(instructions are under the cover)

65 # cut off
42 # cut in

Should install a new switch every ten years
& a new check valve before the tank & manifold
assy every 20 years

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check the water level in the well as it may be too deep for the pump to lift the water and maintain the pressure. Are you using a straight pump or an injection pump that helps lift the water to the pump. remember that centrifugal pumps only supply a vacuum in the suction line and atmospheric pressure on the water does the rest. when the weight of the water is equal to the pressure of the air the pump will not lift any more

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We have a well and our water pressure keeps changing, from very low, to blasting... irregular, no pattern


You could have two problems. The first and most likely is that the pressure tank does not have a high enough pre-charge or the diaphragm has a leak. The pressure tank acts like a shock absorber for the well pump and pressure switch. When the water pressure drops the switch turns the well pump on. The pump runs until the pressure switch stops the pump. As the water pressure builds it pushes up on the diaphragm inside the pressure tank. If the pre-charge pressure is too low the system cycles less but the pressure fluctuates more. To fix this, the tank will have a valve on top that looks like a tire air valve. The tank pre-charge should be 30-35 psi. If your pressure switch is working properly, when the pump builds up the pressure about 15-20 psi more, the switch shuts the pump off. The pre-charge above the diaphragm pushes down and forces the water out to the tap.
If the pressure switch is set incorrectly the fluctuation may produce similar results. The pressure switch should be set to deliver adequate pressure and according to the well pumps working limits. Depending on the how far up the water has to be elevated to reach the highest shower head the more pressure is needed. The pressure switch has electrical contacts that could be burned and not releasing to stop the pump correctly. This should be checked by qualified service technician. Electricity and water don't play well together, add in a little carless good intent and you could have worse problems.
Get out the pressure gage and check the pre-charge, add air with a bike pump or a regulated compressor. If water spurts out of the air valve, the diaphragm has a leak. If the pressure is not the problem, call for service. This video has all the info you may need.
Components Of Typical Well Water System

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I have a flotec 1 hp pump. Wife washed 3 loads of clothes in a row and noticed we run out of water a while later. I shut pump off and noticed pressure tank low on air. I put 18 lb. air in tank and...


If in the past your system can build-up pressure up to 40 psi even if the supply valve is open and water is being used in your house, then your pump impeller maybe already worn out that's why its pumping capacity was reduced.

Nov 12, 2012 | Flotec Corrosion Resistant Shallow Well...

1 Answer

2001 honda passport not getting fuel


First off, do you hear the fuel pump priming when you turn on the key. Should hear a light buzzing from the fuel tank for approx. 5 seconds. Have you opened the pressure line or the pressure test port on the fuel line on top of the engine to see if you are getting any fuel even trickling out especially during the priming. Pressure should be in the neighborhood of 45-50 psi for the system. A fuel pump can slowly fail, by losing pressure, but still can move some fuel if you hear it running oon the prime cycle. You can often borrow a fuel pressure guage from your local chain auto parts store to actually see what's goin on with the fuel system. You hook it up to the test port on the fuel rail and watch the pressure on the prime cycle. If it is very low, try priming the system 3 or 4 times to see if pressure builds, if not that would lead to testing the pressure regulator. But that's for next time.

Jul 22, 2012 | 2001 Honda Passport

1 Answer

I prime the pump, and the sprinkler system does not hold pressure. I have also tried to prime the pump from the intake side. what happens there is that the pump actually begins to shoot water back out the...


You can't prime the pump with the same water source you are trying to build pressure in. Shut off all the water going to the house, use the neighbors hose or have several gallons (maybe 5) to prime the pump and continue priming pump until it starts to build head pressure then plug prime hole.
RJ

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Folks, I have a Karcher 5.55 home water blaster that pulses at the highest pressure on the vario power spray wand. It works fine on the lower pressure settings and with the rotary spray wand. I live in a...


There should be a pressure regulator somewhere in the pump, check your owners manual or go on mfg. Site and see if you can find your model.

Aug 05, 2017 | Karcher Garden

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Low water pressure coming out after pump is on


Check skimmers, pump strainer basket and filter pressure. If filter pressure builds. time to backwash the filter. Also, the impellar on the pump might have debris in it...

Jun 06, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

Doesnt build pressure up ,it just runs right without pressure does the compressor require being oiled?


HELLO THERE:
Here is some troubleshooting tips for you and a web link for you ok this should help
best regards michael
Troubleshooting Your Pressure Washer troubleshooting_pressurewasher.jpg General points to check if a problem occurs
  • Are the engine and fuel switches in the “ON” position?
  • When troubleshooting, always check oil and gas levels.
  • The oil for the pump is a 30W non-detergent mineral oil. Do Not fill over halfway on the sight glass.
  • Is the water tap open?
  • Check the choke and throttle levers.
  • Is the correct nozzle in the lance? Is the nozzle plugged?
  • Only the black nozzle is for soaping at low pressure.
  • Is the water-inlet screen clogged?
  • Hold the gun trigger open while pull starting the engine.
  • Check for O-rings in the lance and quick couplers.
  • Has the unit tipped over? Close the fuel switch and keep pull starting the engine until the excess fuel is burnt up, then open the fuel valve and try again. Some engines will need to be primed every time they are started.
  • Make sure the engine is turned off after each use. It should not be left running without use for longer than 2 minutes as the pump can overheat.
Are you experiencing low pressure?
  • Is there an air leak?
  • Dirty pump valves?
  • Check for worn pump valves or broken valve springs.
  • Check for a worn out spray nozzle.
  • Check for leaks in your plumping or hoses.
  • Troubleshoot your nozzle, is it turned to the highest pressure setting?
  • Is the unloader improperly set?
  • Are the engine RPMs too low?
  • Check if your water supply is sufficient.
  • Check if your engine is getting enough power.
Trouble with high vibrations
  • Dirty pump valves?
  • Do you have a sufficient water supply?
  • Is there are in your water supply?
  • Is the inlet water filter clogged?
  • Clogged or damaged spray nozzle?
  • Make sure it has the correct fuel
  • Has the choke been left on after the engine has warmed up?
If the engine won’t start
  • When troubleshooting the engine, check if it's low on fuel or oil?
  • Worn or dirty spark plugs?
  • Is the switch in the off position?
  • Is the fuel valve in the off position?
  • Is the engine flooded from over choking?
  • When cold starting, was the engine properly choked?
If the starter is hard to pull
  • Low oil in the crankcase or pump assembly.
  • Oil or fuel in cylinders (hydro locked).
  • Pressure built up in the system, relieve this by squeezing the trigger.

Sep 15, 2009 | Honda Garden

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