I've got a K2.55 Karcher , leaking

It sounds like there may be a potential issue with the pressure build-up mechanism in your Karcher K2 compact. The constant motor running without water pressure could indicate a problem with the pump or the pressure switch. I would recommend checking the following:

1. Check the inlet filter: Ensure that the inlet filter is clean and free from any debris or blockages. A clogged filter can restrict water flow and affect pressure.

2. Inspect the nozzle: Make sure the nozzle is not obstructed or damaged. A blocked or damaged nozzle can restrict water flow and affect pressure as well.

3. Check the pressure switch: The pressure switch is responsible for regulating the motor and water flow. It's possible that the switch is faulty or not functioning correctly. Consider contacting Karcher customer support or a professional technician for assistance with checking and possibly replacing the pressure switch.

4. Examine the pump: There might be an issue with the pump itself. It could be worn out, clogged, or experiencing other internal problems. In such cases, it's best to reach out to Karcher customer support or a professional technician for further diagnosis and repair.

Remember to always follow safety precautions and consult the user manual provided by Karcher for specific troubleshooting steps and guidelines.

no power did not cause it to leak. check the wax ring on toilet closet flange

Sharon, Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Grumpy gits and useful tips
How to FIX Karcher pressure washer
Karcher North America Home Garden Online Help

Hi This could be just the water inlet channel broken or split. You will need to remove the yellow cover via the screws at the back of the unit and then connect the water hose to see where the leak is coming from. If the water comes from underneath the pump then you will need a replacement pump seal kit of which you can purchase on the Internet.

Screws, lots of them on the back side of the unit. May be torx type. Once taken out, the top cover should come off.

The most likely issue, which seems to occur alot with karcher, is a cracked water pump. What happens is that as you release the trigger on the handle, the rise in pressure should cut off the motor, but as it also cuts off the water flow at the wand end and the motor spins a few more revs until it stops, then there is a huge pressure glitch which blows apart the weak plastic pumps that they use. Since the plastic cracks it is very difficult to repair and the only option is to go and buy another. BUT...this time tape up the trigger on the handle so it is always on and then it won't blow itself up. Just use the unit on/off switch to turn the motor on and off.

Hi I have water spraying from air vent/intake on side of my k370 can you help ?

Sounds like the water seals are bad. For Karcher parts go here: LINK

if its just a plug, remove it with an allen key and wrap a couple layers of teflon tape around it. That should stop, or at least slow down any leaks that are coming out of the threads.

Hi, I work in the italian factory of Karcher. In my opinion the problem is caused by the breaking of the collector. This is a black component of plastic where is inserted the detergent suction valve and the safety valve. To replace this component you have to go in a repair center Karcher.