fault code F14 ON MIELE G1220 dishwasher?

We have the same problem on a 7 year old Miele dishwasher G4210 that has worked faultlessly from new until now.
It comes up with a F14 fault with the top two out of three red lights coming on.
The guidance in the manual is a little ambiguous, but so far I have done the following:
1. Taken out and cleaned the online filter on the water inlet feed. This is based at the end of the 6 inch block at the tap end of the wter inlet pipe. It was already clean.
2. Checked for kinks in the inlet and waste pipes.
3. Cleaned out all filters in the floor of the dishwasher including removal of the one way valve and ensured the large ball bearing valve is freely moving. This valve was perfectly clean.
4. Cleaned out any debris at waste end where waste pipe joins the sink waste pipe. This was free flowing, but a little mucky.

I am now at a loss as to what to do next and would appreciate suggestions.


Richard
November 2021

Miele F14 error code. No idea what it meant. Cleaned out the impeller as per the instructions in the manual and stuck a hose pipe into the exposed outlet. Seemed to work - for now anyway!

Hit_it_with_a_hammer
February 2011

I had the same problem without a proper answer. I stopped the program, checked all the key elements (notably water) and restarted again the cycle, that run properly. I don't still know the real reason originating F14 code.

Vincent
December 2007

Call the repairman! At least, that's in the Dutch manual

Jeroen
November 2007