Reminder Zanussi w/d, wierd faults caused by dryer heater

[pmb]

Had a Zanussi Washer/Dryer today display not coming on.
As soon as I disconnected dryer heater it’s OK, so I just have to
Replace element, can be all types of symptoms caused by this
I know all the experienced engineers will check this.
But if you are new to the trade machines might get righton off
as it’s not a obvious cause

[electrofix]

Re: Reminder Zanussi w/d, wierd faults caused by dryer heate

get fault like this a lot these days. heaters are well known by us to cause all sorts of problems as soon as there is a leak to earth. Bosch wash heaters is another one.
just does not make any logical sense to the symptoms your getting

Dave

[Martin]

Re: Reminder Zanussi w/d, wierd faults caused by dryer heate

pmb wrote:I know all the experienced engineers will check this.

I’m delighted to hear you solved the problem pmb and I get where you’re coming from regarding experience. But experience is primarily gained by applying the basic procedures toward initial fault finding from the start.

You no doubt quickly found this fault using a basic insulation test procedures the moment you clapped eyes on the machine. And your post intended to direct others into doing just that.

So a good moment for me to direct others into realising the benefits of such fault finding techniques by providing a useful link below. I wrote the article years ago and it features a basic analogue insulation tester. Many of you opt for the digital equivalent, which is the preferred tool these days, but hey I’m old school. 😕

http://www.ukwhitegoods.co.uk/forumsphp … s/file/740

[kaibart]

Re: Reminder Zanussi w/d, wierd faults caused by dryer heate

Your spot on Martin without carrying out these tests faults can be overlooked

[alster]

Re: Reminder Zanussi w/d, wierd faults caused by dryer heate

Would i be right in thinking we should be looking for 0.1 ohm earth continuity these days??

[Martin]

Re: Reminder Zanussi w/d, wierd faults caused by dryer heate

alster wrote:Would i be right in thinking we should be looking for 0.1 ohm earth continuity these days??

Yes 0.1 to 0.5 ? between the plugtop earth pin and machine cabinet is fine. 😀

[eastlmark]

Re: Reminder Zanussi w/d, wierd faults caused by dryer heate

having said that, often these Electrolux dry heaters read fine when cold. Its only after they have been on for a while the insulation drops and then can quickly regain their integrity by the time you have untangled your meter leads. Guessing a lot of experienced engineers have found this out the hard/expensive way.

[Martin]

Re: Reminder Zanussi w/d, wierd faults caused by dryer heate

eastlmark wrote:having said that, often these Electrolux dry heaters read fine when cold. Its only after they have been on for a while the insulation drops and then can quickly regain their integrity by the time you have untangled your meter leads.

That’s why it is important to test before, during and after the repair is carried out. As stated in paragraph 2 (page 1) of my publication. 😉

Basic procedures that speed up diagnosis, repair time and cost.

[Author]

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