[water-man]

Re: Zanussi DE6850 Salt Problem

I checked the cap and all seems OK and removed the IWMS yet again and checked the two solenoid valves. No blockages to report and the solenoids checked out electrically. I did however find the problem….. In curing a previous problem with the IWMS when the softener resin beads chamber had become solid/blocked after a period of storage, I had not realised that the 2 valves can be fitted either with the contacts at the top or at the bottom and their functions are changed when the block connector is fitted. It’s obvious now that the dishwasher was filling with salty water rather than it being used at the end of the cycle to backwash/regenerate the softener….doh!!…no wonder the cutlery went rusty overnight. I changed the valve orientation back and it has been perfect since….thx to all that replied

water-man

[water-man]

Re: Zanussi DE6850 Fill/Cycle Problems

I have persevered with the old IWMS and after lot’s of pressure flushing, the softener regeneration unit (that’s the large compartment full of minute probably dirty brown resin beads in the centre of the IWMS) now allows sufficient flow through it to balance pressures during filling and I do not get the overflowing from the air break that caused the original flood alarm. Put it all back together and apart from forgetting to put back the small bore plastic pipe connection to the (hidden from view) pressure switch at the front, all now works fine.

For those that attempt to clean out the IWMS for which you need to take it out, preferably somewhere you don’t mind getting wet! there are four water connections in all to re-connect. It’s easy to miss the fourth one as the small tube slips back from view into the depths of the dishwasher and you can’t get to it unless you take off the galvanised chassis closing strips at the bottom front.

Dave
Many thanks for your advice along the way. Cheers
water-man

[water-man]

Re: Zanussi DE6850 Fill/Cycle Problems

Dave

thx for the reply. The PNC No. is 911888073 /01 which hopefully will mean something to you.

Water backs up along all three of the air break outlets at slightly different rates. I have taken the IWMS off twice and blown all of the passages through. You can see water travelling along all of them so if it is blocked it is not obvious. Is good water flow through the regen. block essential ?

Do you know what control sequence should happen after filling and how does the IWMS fault prevent this happening ?

Any pointers would be gratefully received…

martin

[Author]

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