Question about McCulloch FHH25A Gas Pressure Washer

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Brand new machine and it ran fine for the first 5 minutes then when I squeeze the trigger now the pump takes a second to click on then when it does the engine stalls

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Sound like you need to replace the unloader valve,or take it apart and free it up,lube the seats and o rings and retry the washer to see if it works.The valve has the pressure regulator in it so the knob that you adjust the pressure with needs to come off and then just unscrew the unloader valve.

Posted on May 09, 2010

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Posted on Jan 02, 2017

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Why my s430 will run and idle but dies as soon as squeeze the trigger even if I do it slow? The primmer bulb was bad so I changed that but still does the same thing?


Carb is in need or a cleaning and rebuild. I would suspect the diaphragm is bad. You can get a rebuild kit with all the gaskets for most carbs for around $10. There are some that gaskets are not available for and you would need to replace the entire carb. Carbs run from $15 to $30.

Oct 16, 2016 | Ryobi Garden

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Brand new, ran for two minutes then died.


Did you put oil in the engine before it was started. If you purchased it brand new take it back from where you bought it. Could be such a thing as a dirty fuel bowl or fuel jet.

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Washer Drum Not Moving- belt is fine


Brand new belt and no other symptoms; my bet is the motor brushes. You will have to remove the motor to check this. there are 2 holders for the spring-loaded brush. I am guessing they are worn down and just stopped touching. It's a "silent failure" with no real symptoms except is doesn't move.

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1 Answer

No Pressure


Same problem here. Machine still looks brand new. Absolutely no nicks in the hose. Electric power is just fine. I hear the motor, then when I squeeze the trigger, I get a weak dribble of water for about 5 seconds, then the motor is quiet for a while. This sound familiar to you? I just posted my similar problem. If you hear anything useful, please forward it to me : reb49@att.net Ron

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I CANT GET MY BISSELL SPOTLIFTER MODEL 1716 TO SPRAY THE SOLUTION.


1) Make sure there is water in the solution tank.

2) Try priming the machine by instructing the consumer to squeeze the trigger

repeatedly for 1 to 2 full minutes. Important: If you cannot

squeeze the trigger all the way in, remove the tank from the back of the

machine and then try squeezing the trigger with the tank removed. There is an

internal valve that could be sticking. By removing the solution tank and squeezing

the trigger, it should break it loose, allowing the trigger to be fully depressed.

3) Make sure the open end of the siphon tube in the solution tank is not pushed into the

side of the tank, covering the end of tube. If it is, push the bend in the

Siphon tube toward the back of the solution tank.

4) Check to see if the siphon tube has become disconnected from the outlet fitting on

the inside of the solution tank. If so, you need to buy a replacement solution tank. Parts

can be found at www.bissell.com

5) Check to see if air comes through the spray tip by repeatedly squeezing the trigger

with solution tank off the unit. If not, spray tip may be clogged. Try and unclog

spray tip with a pin or paper clip.

If still no spray, please check the following:

a) Make sure the solution tank is installed properly.

b) Check to see if black O-ring is present on rear connector to solution tank.

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I HAVE A BRAND NEW TROY-BUILT 2600PSI pressure washer. I have used it twice for about 1/2 hour each time. It worked perfectly. I tried to use it today with everything hooked up perfectly. The Honda engine...


Sounds like the governor is stuck. My pressure washer speeds up when it has to pump. Don't know if yours uses vacuum to trigger governor or direct linkage. Good Luck.

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1 Answer

A FRIEND HAS LENT ME THIS WASHER, BUT HAS T GOT A MANUAL


Best to run hose for a minute before connecting to machine to clear any debris from hose, plug hose to machine and pull trigger to run water through, plug into power and away you go, when trigger not pulled unit goes into bypass mode, it is advised to not leave in bypass for more than about 5 minutes, this model is light and can easly be over heated so I would advise to switch off at machine and run water through every 20 minutes to half an hour for at least a couple of minutes, after you have finised using unit, switch off at machine, disconect water and power then squeeze trigger to release pressure from pump.

Apr 20, 2009 | Garden

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