Question about Karcher PSI Electric Pressure Washer
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Posted on Jan 02, 2017
To remove the cover, undo the two screws holding on the equipment tray on the handle. Then turn upside down and undo the two screws on the bottom. You will need a very long handled screw driver to reach into the deep recesses. I think they may to TORX screws (working from memory and has been a while since I pulled one apart). The blue cover will now pull off. The only trouble you may have is that the bolts are ordinary black steel ones and may have rusted through
Most likely fault is that the pressure switch has failed open. A combination of dirty water leaking past the seals and rust will eventuall jam the switch. The switch assembly is the white plastic part directly bolted onto the pump. A plunger is pushed by the pump when it is up to pressure which trips a micro switch and turns the power off. You will need to replace the complete pressure switch which is about $60. If you take care the micro switch assembly can be removed and then put back onto the new switch. If you break it, then another $40.
Posted on Jan 12, 2009
GO TOO WAL MART AND SEE IF THEY HAVE A COMPARABLE TRIGGER AND NOZZLE ASSY. REPLACE THE THING WITH SOMETHING DIFFERENT. WHAT YOU HAVE IS JUNK AND WON'T NEVER WORK FOR LONG.
Posted on Apr 21, 2009
SOURCE: Karcher pistol gun has broken
Make sure you DO NOT have a check valve (this is what stops your hose running when you disconnect from the hozelock fitting) in your hose pipe system, This will send a shockwave through the pressure washer and destroy the fitting you mentioned. They can be easily removed.
Posted on Jul 25, 2009
Hi Steve, In 3 years of repairing pressure washers I've only ever seen one of these, and am having a hard time remembering much about it, except that it was really awkward to work on! Strictly speaking, many small pressure washer repairs are uneconomical, because the labour time involved costs almost as much as the machine is worth. However, a "motor won't go" problem does narrow things down a lot. To state the obvious, we're looking at an electrical problem. The challenge is to find the cause! Did the motor stop while you were using it, or did it fail to start when you got it out of storage? If you are in the UK you should first check the plug-top fuse and the full length of the flex for any damage. If you have any kind of low-voltage electrical testing device, you can test for continuity between the live and neutral pins of the plug (with the machine switched on you should have continuity). If you have no continuity (and the fuse is OK) there may be a problem with the switch on the machine. Unfortunately, unless you are a really keen DIY person, there's not much you can do by way of self-help. A repair centre may be able to help you, but beware of costs spiraling beyond the cost of a replacement machine. I hope this will be helpful - if you can give more details I'll help further if I can. Good luck!
Posted on Aug 16, 2009
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