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fisher paykel DD605ss - U1 fill fault error


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10 replies to this topic

#1 koobedo

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Posted 01 November 2012 - 09:41 AM

My dd605ss just quits randomly during the cycle and shows a"fill fault" error While beeping. This only occurs in the the top drawer. Bottom drawer works fine.Any ideas?

Edited by koobedo, 01 November 2012 - 11:38 AM.


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#2 Samurai Appliance Repair Man

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Posted 01 November 2012 - 05:40 PM

The control isn't seeing water entering the pump. Is there water in the drawer when the code goes off?

I've PMed you the service summary which has a list of action items for this fault and how to enter diagnostic mode.

#3 koobedo

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Posted 02 November 2012 - 09:49 PM

Thanks for the Service Sumary. I have checked the water level and yes it fills to the same amount the bottom drawer (which works fine) fills to. Does this mean controler is faulty? Do you have instructions on replacing said controller and is it possible to swap controller from bottom unit to test theory?

#4 J5

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Posted 02 November 2012 - 10:56 PM

check the rotor is in 1 piece

yes you can swap the controller from top to bottom to check

#5 DADoESTX

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Posted 04 November 2012 - 04:06 PM

Fill level is sensed by the rotational load on the pump impeller.

Swap the impeller between the drawers to check if the problem follows.

A split in the spray arm can also cause a fill fault by throwing the spray pressure (and thus pump load) off-kilter.

#6 kdog

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Posted 04 November 2012 - 09:54 PM


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For service manuals and lots of other goodies, become an Apprentice ==> Apprenticeship

#7 koobedo

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Posted 08 November 2012 - 01:28 PM

Thanks for all the advice. I have now done the following with no change:
- swapped rotor
- swapped rinse arm
- swapped controller
DADoESTX, mentioned the fill level is sensed by the rotational load on the pump impeller. Is there a sender unit I need to look for? As it stands now, the top drawer stops at 113, 101, 94, 44, 38, and 14 minutes on the normal cycle and shows the U1 fault. I wonder if these times correlate to water fill point in the cycle.

Edited by koobedo, 08 November 2012 - 08:40 PM.


#8 koobedo

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Posted 13 November 2012 - 07:33 PM

Any more ideas on this problem?

#9 J5

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Posted 13 November 2012 - 09:55 PM

have you checked the filling in diagnostics and checked that its actually flowing in water at a decent rate ?

#10 koobedo

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Posted 16 November 2012 - 05:53 PM

flow rate checks out ok. Machine stops 3-4 seconds into wash cycle so no problem with flow and amount of water in the tub.

#11 koobedo

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Posted 30 November 2012 - 03:29 AM

Well I got a hold of the nice people at F/P and they gave me an important bit of info,"the tub needs to fill in under 45 seconds". This wasn't  happening and it was just taking too long to fill the tub. Replaced fill solenoid and all is well now. So turns out J5 was right with the flow rate check just needed to know what a descent rate was.






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