Question about McCulloch FHH18A Electric Pressure Washer
I hook up the hose, let water run, pull the trigger and water shoots out, motors kicks on - everything is fine. Attach the "high pressure wand " to the "gun" and it barely shoots water and shortly(seconds) trips the reset switch. I shut it off , hit the reset, pull trigger again ...same thing ! I've used this twice since I bought it ! I tried soaking the "wand" in vinegar and water to loosen up deposits ... nothing is working .... losing my mind here !
Bryan L. / Connecticut
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.
Posted on May 17, 2010
1 of two problems it could be you could have a blockage in the wand or u may have a dual water end on the wand turning the very end part adjust the width of spray and turning the second to end part adjust the water flow through the nozzle and that can be altered like i did inadvertently hence the machine works with no wand and with wand doesnt
Posted on Oct 31, 2014
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Posted on Jan 02, 2017
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