Zannussi dishwasher dead

FiremanT · 6 Oct 2020

ZDT11001FA model
My daughter has the above. It suddenly stopped working- no lights at all showing.
I got the front cover off, hoping to see evidence of a failed board but nothing obvious.
You can get pretty much any gas boiler circuit diagram and fault finding help, but cannot for dishwashers.
Can anybody help?

thanks

sircerebus666 · 7 Oct 2020

Have you checked for power going into the dishwasher?

Don't assume, check for power going in with a multi meter

johnny2007 · 7 Oct 2020

There's a recall on them about the lead cable and internal circuit board attached to it.
Before i knew, i changed it at my son and this is what was there.
Then i found out about the recall: £20 wasted

FiremanT · 7 Oct 2020

johnny2007 said:
There's a recall on them about the lead cable and internal circuit board attached to it.
Before i knew, i changed it at my son and this is what was there.
Then i found out about the recall: £20 wasted

I removed the panel of the door. I could not see any damage. Would your photos be of a part that would be immediately obvious?
Otherwise where are they located?

Also, how would one respond to the recall?

Thanks

johnny2007 · 7 Oct 2020

Yes, once back panel is off, the lead circuit board will be obvious, it's where the lead enters the machine.
Plenti of videos online on how to remove back panel.
To check recalls google zanussi recalls.

FiremanT · 7 Oct 2020

johnny2007 said:
Yes, once back panel is off, the lead circuit board will be obvious, it's where the lead enters the machine.
Plenti of videos online on how to remove back panel.
To check recalls google zanussi recalls.

Thanks

FiremanT · 7 Oct 2020

Thanks. I tried the Zannussi recalls, but my daughters is a ZDT - the closest is a ZDF.

But worth checking and knowing about

sircerebus666 · 7 Oct 2020

Why haven't you still checked there is power going into the dishwasher? It is the very first thing you check when you have anything dead that's electric

johnny2007 · 7 Oct 2020

sircerebus666 said:
Why haven't you still checked there is power going into the dishwasher? It is the very first thing you check when you have anything dead that's electric

Too easy.
Better to dismantle the lot and then check if there's power

FiremanT · 7 Oct 2020

sircerebus666 said:
Why haven't you still checked there is power going into the dishwasher? It is the very first thing you check when you have anything dead that's electric

johnny2007 said:
Too easy.
Better to dismantle the lot and then check if there's power

What makes you think I didn't?

There was certainly 240V at the socket into which the machine is plugged, and the fuse is fine. (I was hoping for a dodgy one, but there you go). And to do that I had to remove the washer from the unit - the builders had fitted the socket BEHIND the integral dishwasher. I could have started taking readings elsewhere, but pointless without having any references.

I am reasonably confident that with a service book, with a functional flow diagram and values, I could identify the faulty component - but it is a bit difficult when it seems practically impossible to get such information. I assume (and correct me if I am wrong) that the secrecy is to protect the income to the service trade.?

The one thing that I maybe should have done, with hindsight, was to have measured the resistance between L&N on the plug pins, but , again, without a reference it would be pretty pointless. If I got a resistance value other than infinite, it would indicate that the there was no neutral break on the mains lead - but I have never seen a lead damaged other than on potable appliances as the cable enters that appliance.

FiremanT · 7 Oct 2020

Is there a fuse before, or on, the main board?

jj4091 · 8 Oct 2020

" I am reasonably confident that with a service book, with a functional flow diagram and values, I could identify the faulty component - but it is a bit difficult when it seems practically impossible to get such information. I assume (and correct me if I am wrong) that the secrecy is to protect the income to the service trade.?"
Yes you are correct, it is the same for all " white goods" as you say they are available for gas boilers but I guess. people are more unlikely to start trying diy repairs on them.

Read more: https://www.diynot.com/diy/threads/zannussi-dishwasher-dead.554358/#ixzz6aFQW9WGy

sircerebus666 · 8 Oct 2020

So what you are saying is you still haven't checked there is power going INTO the dishwasher?

Check for 240v where the lead enters the dishwasher and for voltage after a tranny if it has one , you also see if there are any internal fuses that may have blown too and check them even if they look ok, I would also check for power going to the control board too and look for any fuses on the control board and check them too.

With a power issue you work backwards from the plug testing for power until you don't find any at that point you have your issue

Personally seeing as you are not confident at fault finding , I would enlist the services of an engineer or simply buy your daughter a new machine

sircerebus666 · 8 Oct 2020

[/QUOTE]
The one thing that I maybe should have done, with hindsight, was to have measured the resistance between L&N on the plug pins, but , again, without a reference it would be pretty pointless. If I got a resistance value other than infinite, it would indicate that the there was no neutral break on the mains lead - but I have never seen a lead damaged other than on potable appliances as the cable enters that appliance.[/QUOTE]

No that could also mean there was no break on the live cable in the mains lead and if you got infinite resistance that could mean there is a break in either the lead or SOMEWHERE inside the machine , which you know anyway as you have no power

FiremanT · 8 Oct 2020

jj4091 said:
" I am reasonably confident that with a service book, with a functional flow diagram and values, I could identify the faulty component - but it is a bit difficult when it seems practically impossible to get such information. I assume (and correct me if I am wrong) that the secrecy is to protect the income to the service trade.?"
Yes you are correct, it is the same for all " white goods" as you say they are available for gas boilers but I guess. people are more unlikely to start trying diy repairs on them.

Read more: https://www.diynot.com/diy/threads/zannussi-dishwasher-dead.554358/#ixzz6aFQW9WGy

The one thing that I maybe should have done, with hindsight, was to have measured the resistance between L&N on the plug pins, but , again, without a reference it would be pretty pointless. If I got a resistance value other than infinite, it would indicate that the there was no neutral break on the mains lead - but I have never seen a lead damaged other than on potable appliances as the cable enters that appliance.[/QUOTE]

No that could also mean there was no break on the live cable in the mains lead and if you got infinite resistance that could mean there is a break in either the lead or SOMEWHERE inside the machine , which you know anyway as you have no power[/QUOTE]

Which is pretty much what I said. And without access to wiring diagrams, knowing that there MAY be a break in the neutral inside the machine is worthless.

On a boiler, one if the checks to prove a fault on a component is to check the wiring harness serving that element, which is what \i thonk you are driving at.

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