[SOLVED] Karcher B402 Repairs

Karcher

How do you remove the aluminium housing around the inlet elbow to allow the elbow to be changed

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Here`s how it works, devices from the Home & Garden range can be repaired in our repair centres. Machines within their warranty period are repaired free of charge subject to our Home & Garden terms and conditions.

PLEASE NOTE: You should always press the RESET button on the GFCI before using the pressure washer.

You may need to rebuild or replace the pump assembly. If the pump is more than a few years old, and you use the pressure washer fairly often, replace the pump assembly. If the pump is relatively new, and you don`t use the pressure washer often, either rebuild the pump assembly or replace the pump seals.

Have you gotten many years and hours of use from the pump? If so, it may be time to replace it. However, if it is a newer pump, repair might be best. A good rule of thumb is if the repair costs more than 50% the value of a replacement pump, it is likely time to replace it.

It depends on the pressure washing equipment you purchase. New pressure washers will be rated with a number of hours they should last. For example, if it is rated 500 hours and you use it fewer than 50 hours throughout the year then it will last you more than ten years as long as you keep it well maintained.

These include a clogged nozzle, a blocked inlet water filter, or a malfunctioning pump. It could even be the water supply itself – not the pressure washer. When troubleshooting pressure washers, the best approach is to check the easiest solution first and rule it out before proceeding to more intensive repairs.

Begin isolating the problem by hooking a water hose to the washer`s inlet and turning it on. If water flows out the outlet, you know water is cycling through. If not, chances are your inlet filter is clogged. Remove and clean it, and you should be good to go.

If the pressure washer does not start, then the first thing to check is the fuse in the plug. The reading you`re looking for is the same as it would be when connecting the two probes of the multimeter together (as you can see in the example of this video, this fuse is actually fine).

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Hi, I have a Karcher 3.99. It’s going funny. When

ANSWER : Your internal sdeals have gone bad and need to be replaced. they sell kits for these that are inexpensive and the repair is usually pretty easily done

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Gun leaks I took it apart and replaced the O rings,,, where does the big spring go?? where can I get a repair manual?

ANSWER : Hi, there is a spring in the handle, to enable the trigger; is this what you mean. If so look to see how the trigger works and there is space for this sping to slot into. It can be quite fiddly to get this right!

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My Karcher 2.36 is leaking at the inlet point can someone tell me how to fix it

ANSWER : This sounds like the o-ring inside the end of the high pressure hose could be damaged and is in need of replacing. If this is not the case you may need to have the inlet replaced.

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Karcher 4.91 checked fuse that is ok but no power

ANSWER : Check and see if you are getting power to the on/off swith. These switches have been known to go bad. Also, check the Ground fault breaker in the plug. Let me know how you make out.

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I have a karcher 2.o1 pressure washer does not work when i turn the water on, if i turn the water off it works, cant figure it help , help please

ANSWER : Please try without the high pressure lance on. If this works then you may have a blocked jet in the lance.

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I left my electric karcher pressure washer it in the shed during the winter and they tell me that the housing and the safety valve need replacing. Can I repair it myself? They want 180.00 to fix it which is the price of the washer. Thanks

ANSWER : This needs new piston housing cover the existing one will have a crack in it.

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Water is leaking from under the chrome piece inside my Karcher 3.68m pressure washer. Hose intake and outlet look good. Any sugeestions.

ANSWER : Plastic Pump Manifold is cracked.

Can be replace at a local Karcher Service Center,
or if you are mechanically handy.
Replacement Manifold Complete, is available from www.karcher.com.

If it is under 1 year old, and under warranty Karcher will replace if you have a Receipt proof of purchase.

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I have a Karcher 3.49M purchased 8/2/09. Using the washer I inadvertently turned on after changing hoses, but forgot to turn water back on; this activation lasted only a couple of minutes before I realized there was no water. Now the unit makes a humming noise and does not turn on.
Can this be corrected, or do you believe the motor is burned up? I tried various electrical outlets and resetting etc. but to no avail. Thank you.

ANSWER : Normally when you dry run a machine you damage the pump so it would probably need changing. The motor might be Ok but for you to fix it you will need to take it to a Karcher dealer/service center.

From experiance it sometimes can be more cost efficient to purchase a new Karcher machine and get the 12 month warranty than spending money on an older machine.

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