On 17/12/2019 23:49, John wrote:
Pamela wrote in
:

On 16:20 17 Dec 2019, John wrote:

Graham. wrote in
:


Help me out here. I thought I knew how a door interlock works and I
suppose the PTC thermistor could overheat and cause a fire, but I
can't see how the load of the main heating element influences it.
Does anyone know what the actual mode of faliure is?

https://www.bbc.co.uk/news/business-50811686
https://youtu.be/O9zfue1NzGU


They always have a ridiculous number of models in production. Modes
for different retailers so that they can't be beaten on price,
different countries, etc.
Can this lead to them not being sufficiently focused on quality and
reliability. Too much distraction.

Hopefully the socking great cost of the recall will focus Whirlpool's
mind on better design in future.



Sounds like a relay is needed. (or electronic equivilant)


The door interlocks, which I believe are the problem, are similar in
operation across many machines. I'm not defending Whirlpool- having had
issues with one of their fridge/freezers in the past (about 30 years
back so not the current round) I'm no fan of theirs, although they did
respond well after a complaint to their CEO BUT I'd not be surprised if
similar parts are used in other machines which haven't been identified
yet by other manufacturers*.

Also, in fairness to Whirlpool, the scale of this problem is massive.
Their logistic system simply isn't designed to cope with this scale of
refit etc.

People are, perhaps understandably, concerned after Grenfell etc, but
just how many incidents have there been across the units in operation?

*When you buy parts to repair appliances yourself, you often find they
are common to a number of machines which aren't simply 'badged' versions
of the same basic beast.