Question about McCulloch FH140A Electric Pressure Washer

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Mcculloch fh140a no water from wand

I used it when new once for about 15 minutes. It has been stored for a few years inside. The next time I tried to use it; it would not function. the water is hooked up when I turn it on you can hear the pump functioning but no water from wand. then the circuit breaker trips

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

rowdy45176
  • 2176 Answers

SOURCE: I need a switch fo a Mcculloch FH140A or rocker parts

The switch number I found is 7022140A02 and list is 2.84. You can go to McCullochpower.com and find a dealer near you or order the part online. You can follo the links to look at the same breakdown I found for other parts

Posted on Jul 27, 2009

  • 4090 Answers

SOURCE: Replacing a broken component on my McCulloch FH180B

Mc Culloch service centre Check the phone books pages in your country of origin ( or on the net). Your local hardware or distributor should be able to direct you to the service centre.
Cheap part ( $5) but they have a minimum labour cost of $100. So ask first if you can just buy the part and DIY



Please rate my help++++Thanks for using FIXYA

Posted on May 04, 2010

kel1guy2002
  • 3740 Answers

SOURCE: shuts off when high pressure wand is attached

Hi Brian. Welcome to FixYa I am Kelly. This sounds as if the bypass / unloader valve is stuck in place and the pump id dead heading causing the unit to shut off. (There is most likely some corrosion in the unloader / bypassy valve assy / housing. What you can try is pouring at least 3 oz of oil into the water inlet assy and briefly.... like VERY briefly switch the unit on then back off. Then let it sit over night. The next day connect everything for normal use then turn the unit on again briefly. Use a bucket to PURGE the oil that you put through the system by squeezing the wand Power SW Off until the oil purges. Then switch the unit on and rapidly trip the trigger at 0.5 sec intervals or less. If it trips off wait 5 mins and try it again. Do the rapidly tripping the trigger on the wand routine for about 20 seconds. Your forcing the bypass unloader valve to cycle trying to clear out any debris / corrosion.
This works often and well. There are exceptions. Hopefully it will work for you.

Thanks for using FixYa.

Kelly

Posted on May 17, 2010

  • 149 Answers

SOURCE: mcculloch power washer fh140A 1400 PSI help

the unit will only **** up solution when the pressure is low, thats how they all work so you cant use pressure at the same time. You will notice that the pressure drops when using the solution ****..
soap 1st the pressure wash.

Posted on Jul 02, 2010

Asbestos 56
  • 191 Answers

SOURCE: I have a McCulloch FHH18A

I would guess there is a leak somewhere inside the unit that is spraying water on some electrical component and causing a ground fault.

Posted on May 16, 2011

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Whar has happened is that your unloader / bypass valve is sticking. This is due to minor corrosion and having water in the unit over the winter. Most of the time they will sanp out it if you do the following:

Add 3 - 4 oz of oil into the water supply connection and briefly and I mean very briefly switch on the unit then right back off. Add more oil to the water supply connection and then let it sit overnight.

Then next day turn the unit on briefly and let it sit another 30 minutes. After this you connect all hoses making sure to purge the air our of the supply hose BEFORE you connect the to the unit. Then once you turn the unit on rapidly trim cycle the wand trigger. Your goal here is to cause a water hammer of the unloader / bypass valve to get the spring and cupped seal to move in the housing. Pause briefly and see if pressure builds then fan the wand trigger again. This can take a few minutes to get it to work but the routine of pausing waiting momentarily and rapidly tripping the wand trigger is what should get the unit going again.

If this does not work you will have to take the unit apart dis-assemble the unloader / bypass vavle on the output side of the pump and remove the corrosion on the spring and the housing.


Once your done cleaning up the bypass unloader valve before you put it back in the housing place a liberal amount of Lubriplate #105 White Grease on the spring and inside the housing on the mating surfaces. (#105 white grease is available at any Auto Parts store. It is in a 3 - 5 oz plastic tube)

Re-assemble the unloader / bypass valve an it should work like a champ.

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the unit will only **** up solution when the pressure is low, thats how they all work so you cant use pressure at the same time. You will notice that the pressure drops when using the solution ****..
soap 1st the pressure wash.

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