Question about Karcher K2.26 Electric Power Washer

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No power The unit starts then stops immediately

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The most common problem is the unloader valve.The valve that you use to adjust the pressure need to come out and then free up the unloader valve with some penatrating oil and maybe even some emery cloth.If you cant free it up then it will have to be replaced.

Posted on May 09, 2010

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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My GE Profile model WPRB8050D0WW won't start!

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Starts then stops immediately after

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Unit will not power on.

One or more sections of the power supply are not coming on. This unit has both fuses and ICP's (integrated circuit protectors) in the power supply that may open up causing your symptom. You will need to check and/or replace any open fuses or ICP's. If they immediately open up again, you will need the manual to figure out what is loading the power supply, or what component in the power supply has failed.

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1 Answer

Washer starts then stops and displays f28

hello southerndav4,

you said, you when the unit is started in any cycle it will lock the door and then run water in for a couple of seconds. It then stops the water and unlocks and immediately locks again. There is no further action except the timer counting down until f-28 code. There is no tub rotation and the ccu was replaced.

I see you did a couple of tests and replaced the CCU!!
You did do what I would have suggested.

You may need to use hands on service this time!
rather than swapping out expensive parts blindly!

Let me know...
Please remember to leave a rating

This is the condition fo the F28 error code
The communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.

This is what you need to check and or repair

1. Unplug washer or disconnect power.
2. Check wire harness connections to the MCU, the motor, and Central Control Unit (CCU).
Check connections of the CCU board within the housing.
Make sure all grounding switches are engaged.
3. Check the drive system for any worn or failed components.
4. Plug in washer or reconnect power.
5. Verify CCU operation by running a Diagnostic Test or any cycle.
6. Check the MCU by looking for operations of the drive motor.
7. Check the drive motor for powered rotations.
8. Check that the serial harness at the MCU is not mounted upside down. The wires should be to the left when facing the MCU connectors.

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