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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Whirlpool recall.
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 -- Graham. %Profound_observation% |
#2
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Whirlpool recall.
On 17/12/2019 14:46, Graham. wrote:
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 That perplexed me too. Unlike a tumble dryer, which can end up full of lint and dry clothes and has a big heater plus a fan blowing the hot air around, a washing machine is full of wet stuff. It's unlikely to cause a serious fire, and indeed, according to the BBC, there have been none. |
#3
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Whirlpool recall.
On Tuesday, 17 December 2019 16:07:21 UTC, GB wrote:
It's unlikely to cause a serious fire, and indeed, according to the BBC, there have been none. "Some, about 20%, of the Hotpoint and Indesit washing machines sold since 2014 are affected by the fault. Up to 519,000 washing machines sold in the UK are involved. Seventy-nine fires are thought to have been caused by the fault which develops over time, according to Whirlpool, which owns the brands." I don't know if it was one of these brands, but I know someone who had a washing machine fire. If they had been out of the house, or hadn't dragged the machine out of the kitchen door, they'd probably have lost the house. Owain |
#4
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Whirlpool recall.
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#6
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Whirlpool recall.
In article , briang1
@blueyonder.co.uk says... The most flammable bit of those tvs was the glue holding the veneer to the chipboard cabinets. Chipboard, Brian? Used to be plywood in my day - and that was heavy enough! -- Terry |
#7
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Whirlpool recall.
On 17/12/2019 20:59, The Other Mike wrote:
On Tue, 17 Dec 2019 10:32:56 -0800 (PST), wrote: On Tuesday, 17 December 2019 16:07:21 UTC, GB wrote: It's unlikely to cause a serious fire, and indeed, according to the BBC, there have been none. "Some, about 20%, of the Hotpoint and Indesit washing machines sold since 2014 are affected by the fault. Up to 519,000 washing machines sold in the UK are involved. Seventy-nine fires are thought to have been caused by the fault which develops over time, according to Whirlpool, which owns the brands." I don't know if it was one of these brands, but I know someone who had a washing machine fire. If they had been out of the house, or hadn't dragged the machine out of the kitchen door, they'd probably have lost the house. Ditto with a mate of mine back in the late 1980's, an AEG washing machine, costing an arm and a leg and just a few months old decided to burst into flames just as they were going to bed. Fortunately it was unpluggable and a few buckets of water eventually put the flames out. Five minutes later and the whole kitchen would have been alight. Which bits of the machine were burning so fiercely? |
#8
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Whirlpool recall.
On 18/12/2019 11:50, GB wrote:
On 17/12/2019 20:59, The Other Mike wrote: On Tue, 17 Dec 2019 10:32:56 -0800 (PST), wrote: On Tuesday, 17 December 2019 16:07:21 UTC, GBÂ* wrote: It's unlikely to cause a serious fire, and indeed, according to the BBC, there have been none. "Some, about 20%, of the Hotpoint and Indesit washing machines sold since 2014 are affected by the fault. Up to 519,000 washing machines sold in the UK are involved. Seventy-nine fires are thought to have been caused by the fault which develops over time, according to Whirlpool, which owns the brands." I don't know if it was one of these brands, but I know someone who had a washing machine fire. If they had been out of the house, or hadn't dragged the machine out of the kitchen door, they'd probably have lost the house. Ditto with a mate of mine back in the late 1980's, an AEG washing machine, costing an arm and a leg and just a few months old decided to burst into flames just as they were going to bed.Â* Fortunately it was unpluggable and a few buckets of water eventually put the flames out. Five minutes later and the whole kitchen would have been alight. Which bits of the machine were burning so fiercely? The plastic bits :-) |
#9
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Whirlpool recall.
On Wed, 18 Dec 2019 11:50:15 +0000, GB
wrote: On 17/12/2019 20:59, The Other Mike wrote: Ditto with a mate of mine back in the late 1980's, an AEG washing machine, costing an arm and a leg and just a few months old decided to burst into flames just as they were going to bed. Fortunately it was unpluggable and a few buckets of water eventually put the flames out. Five minutes later and the whole kitchen would have been alight. Which bits of the machine were burning so fiercely? It was near the top, around the sequencer/controller, took out much of the wiring, scorched the metal cover and damaged the worktop. Apparently it was fully established flames not just smoke, no fuse blew and I don't think he had a RCD equipped consumer unit either. I don't think his wife ever put a washing machine on a cycle unattended ever again. |
#10
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Whirlpool recall.
I had a service suddenly catch fire some years ago, but it was not serious
and self extinguished. Caused through dry joints sparking on a pcb and the lacquer used to protect it was what caught fire, but the pcb itself and everything around it were fire retardant, so although it made a crackling sound emitted a lot of pungent smoke it did not really do any damage to the room it was in. Of course it could not really be repaired since the original fault was mechanical which had overheated joints etc etc. Sometimes you have to just say its ready for the scrap heap. Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! wrote in message ... On Tuesday, 17 December 2019 16:07:21 UTC, GB wrote: It's unlikely to cause a serious fire, and indeed, according to the BBC, there have been none. "Some, about 20%, of the Hotpoint and Indesit washing machines sold since 2014 are affected by the fault. Up to 519,000 washing machines sold in the UK are involved. Seventy-nine fires are thought to have been caused by the fault which develops over time, according to Whirlpool, which owns the brands." I don't know if it was one of these brands, but I know someone who had a washing machine fire. If they had been out of the house, or hadn't dragged the machine out of the kitchen door, they'd probably have lost the house. Owain |
#11
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Whirlpool recall.
On Tuesday, 17 December 2019 18:33:01 UTC, wrote:
I don't know if it was one of these brands, but I know someone who had a washing machine fire. Just checked and both friend and my mother's washing machines caught fire - they were both Zanussi, in mother's case nearly new and little used. Not representative, but that's 100% of people I know with Zanussis... Owain |
#12
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Whirlpool recall.
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. I thought door locks tended to be mechanical - locked by a bimetal device with a heating element. Could that heater get too hot if in the proximity of a tub of hot water? |
#13
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Whirlpool recall.
On 17/12/2019 16:20, John wrote:
snip I thought door locks tended to be mechanical - locked by a bimetal device with a heating element. Could that heater get too hot if in the proximity of a tub of hot water? Often a wax motor. Cheers -- Clive |
#14
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Whirlpool recall.
John wrote:
I thought door locks tended to be mechanical - locked by a bimetal device with a heating element. Could that heater get too hot if in the proximity of a tub of hot water? TV news had a shot of the door lock mechanism (square hole for the door latch to go through), showing a couple of wires going into it and burning of the plastic next to one. Suggested workaround is to wash at 20C, suggesting the heater element isn't in circuit. Perhaps they're putting the door lock in series with the heating element? Looking at the interlocks on ebay, most of them have connectors rather than wire-terminals. This is from one of the affected models: http://siteassets.ransomspares.co.uk...6242617757.jpg Googling for schematics (not that many are public) does suggest it's common to put the door/lid switch in series with everything else, so the machine is cut off when the door is open. Which would mean the door switch takes substantial load on warm washes. Theo |
#15
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Whirlpool recall.
Theo wrote:
Looking at the interlocks on ebay, most of them have connectors rather than wire-terminals. This is from one of the affected models: http://siteassets.ransomspares.co.uk...6242617757.jpg The DM article appears to show the connector is the problem: https://i.dailymail.co.uk/1s/2019/12...6599321342.jpg (ad-free zone) Googling for schematics (not that many are public) does suggest it's common to put the door/lid switch in series with everything else, so the machine is cut off when the door is open. Which would mean the door switch takes substantial load on warm washes. Although I can't quite work out how they're exploding. Heater is presumably being jammed on leading to steam buildup. If the door switch fails short circuit, that would prevent the machine stopping when the door is opened, but I can't see how it would cause the heater to run for longer. Unless this is a separate problem? Theo |
#16
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Whirlpool recall.
Theo wrote:
I can't quite work out how they're exploding. I presume those photos are nothing to do with failing door interlocks, but failed bearings (or not detecting unbalanced loads) causing the drum to try to escape mid-spin? They don't seem to have scaled their recall registration webserver properly, either https://washingmachinerecall.whirlpool.co.uk |
#17
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Whirlpool recall.
Andy Burns wrote:
Theo wrote: I can't quite work out how they're exploding. I presume those photos are nothing to do with failing door interlocks, but failed bearings (or not detecting unbalanced loads) causing the drum to try to escape mid-spin? You might be right: quote Miss Flint, from Telford, Shropshire, who had her machine for two-and-a-half years without any previous problems, added: 'The washing machine was on spin and it just suddenly blew up. 'I just heard shattering glass and, when I looked, there was steam coming out of it.' /quote q 'At some point the washing machine drum came apart and sent its load up through the top of the washing machine and destroyed a good chunk of the kitchen. /q I had assumed steam buildup was a cause, but maybe just a side effect? It seems this is what comes of excessive value-engineering, and then so commoditising the machines that there's no support network to modify them after-sales. Their standard business model just assumes you'll buy another one when it breaks, which doesn't work so well for recalls... Theo |
#18
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Whirlpool recall.
Theo wrote:
I can't quite work out how they're exploding. No mention of what make this tumble dryer is/was https://www.edp24.co.uk/news/kessingland-house-fire-tumble-dryer-explosion-1-6432441 |
#19
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Whirlpool recall.
On 17/12/2019 19:33, Theo wrote:
John wrote: I thought door locks tended to be mechanical - locked by a bimetal device with a heating element. Could that heater get too hot if in the proximity of a tub of hot water? TV news had a shot of the door lock mechanism (square hole for the door latch to go through), showing a couple of wires going into it and burning of the plastic next to one. Suggested workaround is to wash at 20C, suggesting the heater element isn't in circuit. Perhaps they're putting the door lock in series with the heating element? Looking at the interlocks on ebay, most of them have connectors rather than wire-terminals. This is from one of the affected models: http://siteassets.ransomspares.co.uk...6242617757.jpg Googling for schematics (not that many are public) does suggest it's common to put the door/lid switch in series with everything else, so the machine is cut off when the door is open. Which would mean the door switch takes substantial load on warm washes. Theo I wonder if it's more insidious than that, IIIRC there's some Ecobollox directive that says that appliances must not consume more than 0.5W when "off". Ours does this via the main (wash selector) switch turning off the SMPSU, maybe switching through the door switch is just a much cheaper way of doing it? I notice the door switch referred to in the pic claims to be rated at 16A... |
#20
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Whirlpool recall.
Yes but the point is, the plastic parts used for such things tend to be very
well tested, as its an obvious safety critical part. If it melted, for example and flooded the kitchen I doubt that would down well with customers either. Really, saying only use a cold wash is stupid, its either dangerous or its not. They have in effect layed themselves open for retailers to accept the old ones back then take #whirlpool to court over their cock up. Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "John" wrote in message 2.236... 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. I thought door locks tended to be mechanical - locked by a bimetal device with a heating element. Could that heater get too hot if in the proximity of a tub of hot water? |
#21
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Whirlpool recall.
On 18/12/2019 08:32, Brian Gaff (Sofa 2) wrote:
They have in effect layed themselves open for retailers to accept the old ones back then take #whirlpool to court over their cock up. Perhaps they have timed it to avoid that? All the machines involved are 2018 or earlier. Retailers will be reluctant to get involved on machines over a year old. Brian |
#22
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Whirlpool recall.
On Wednesday, 18 December 2019 11:56:21 UTC, GB wrote:
They have in effect layed themselves open for retailers to accept the old ones back then take #whirlpool to court over their cock up. Perhaps they have timed it to avoid that? All the machines involved are 2018 or earlier. Retailers will be reluctant to get involved on machines over a year old. They don't have a choice. Whirlpool have admitted the fault was present at the time of sale, and consumers can sue the retailer for up to six years after purchase. It will be difficult for a retailer to defend a claim. Owain |
#23
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Whirlpool recall.
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#24
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Whirlpool recall.
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) |
#25
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Whirlpool recall.
On Tuesday, 17 December 2019 23:49:54 UTC, John wrote:
Pamela wrote in : Hopefully the socking great cost of the recall will focus Whirlpool's mind on better design in future. I doubt it. All electrical equipment comes with fire risks obviously, and the standards were quite good, just not quite good enough. I doubt they knew anything was amiss. Whirlpoo does not have a rep for top quality, safety etc, and there is far worse in the marketplace. Sounds like a relay is needed. (or electronic equivilant) That costs. A marginally better switch is cheaper. NT |
#26
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Whirlpool recall.
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#27
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Whirlpool recall.
John wrote:
If they concentrated on less models, then they could reduce their production costs. They're probably all the same basic machine with different plastics on the outside and different firmware settings on the inside ... |
#28
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Whirlpool recall.
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. |
#29
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Whirlpool recall.
*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. Good note! |
#30
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Whirlpool recall.
On Tuesday, 17 December 2019 14:46:27 UTC, Graham. wrote:
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 All down to C‚¬ standards. Much lower than the old BS standard. This is why the Grenfell fire started. Hopefully we can junk them now. |
#31
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Whirlpool recall.
On Tuesday, 17 December 2019 14:46:27 UTC, Graham. wrote:
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 Some pix here. https://www.dailymail.co.uk/news/art...-machines.html |
#32
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Whirlpool recall.
On 17/12/2019 18:20, harry wrote:
On Tuesday, 17 December 2019 14:46:27 UTC, Graham. wrote: 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 Some pix here. https://www.dailymail.co.uk/news/art...-machines.html Adblock has detected 158 ads on that link. -- Adam |
#33
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Whirlpool recall.
On Tuesday, 17 December 2019 19:27:40 UTC, ARW wrote:
Adblock has detected 158 ads on that link. It is the Daily Mail ... Owain |
#34
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Whirlpool recall.
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#35
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Whirlpool recall.
On Tuesday, 17 December 2019 19:27:40 UTC, ARW wrote:
On 17/12/2019 18:20, harry wrote: On Tuesday, 17 December 2019 14:46:27 UTC, Graham. wrote: 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 Some pix here. https://www.dailymail.co.uk/news/art...-machines.html Adblock has detected 158 ads on that link. So? How do you expect free-to-access on-line newspapers to pay for themselves? |
#36
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Whirlpool recall.
On 18/12/2019 09:28, harry wrote:
On Tuesday, 17 December 2019 19:27:40 UTC, ARW wrote: On 17/12/2019 18:20, harry wrote: On Tuesday, 17 December 2019 14:46:27 UTC, Graham. wrote: 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 Some pix here. https://www.dailymail.co.uk/news/art...-machines.html Adblock has detected 158 ads on that link. So? How do you expect free-to-access on-line newspapers to pay for themselves? They should include only just enough adverts to cover the production costs, not as much as they think they can get away with. And avoid nuisance ads that cover the text; videos that start playing (whether the sound is turned on or not); using *all* the processor cycles in the complicated bidding system they use to decide which ads to serve up. They're just greedy. -- Max Demian |
#37
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Whirlpool recall.
On Wed, 18 Dec 2019 01:28:33 -0800, harry wrote:
On Tuesday, 17 December 2019 19:27:40 UTC, ARW wrote: On 17/12/2019 18:20, harry wrote: On Tuesday, 17 December 2019 14:46:27 UTC, Graham. wrote: 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 Some pix here. https://www.dailymail.co.uk/news/art...465/Whirlpool- recall-519-000-Hotpoint-Indesit-washing-machines.html Adblock has detected 158 ads on that link. So? How do you expect free-to-access on-line newspapers to pay for themselves? Russia pays for that one. Additional income is just being greedy. -- My posts are my copyright and if @diy_forums or Home Owners' Hub wish to copy them they can pay me £1 a message. Use the BIG mirror service in the UK: http://www.mirrorservice.org *lightning surge protection* - a w_tom conductor |
#38
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Whirlpool recall.
On Tuesday, 17 December 2019 14:46:27 UTC, Graham. wrote:
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 Door interlock interrupts power to, among other things, the main heating element. So if it has deteriorating contacts, it will burn. NT |
#39
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Whirlpool recall.
The whole thing sounds like a fiasco of major proportions to me. I can only
guess that something in the construction of the door latch was not tested for fireproofness if that is a word, as, like you say the way the system works has been the same for many years. That is unless they re invented the well worse again in 2014. I can see some kind of interlock based on a circuit and a relay that fails connected, and hence overheats the relay, but surely relays that are designed for such uses must be tested to comply? Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "Graham." wrote in message ... 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 -- Graham. %Profound_observation% |
#40
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Whirlpool recall.
The original part supplier might have been replaced by a cheaper
version made in China, where quality control might not be anywhere near as good as the original supplier. On 18/12/2019 08:19, Brian Gaff (Sofa 2) wrote: The whole thing sounds like a fiasco of major proportions to me. I can only guess that something in the construction of the door latch was not tested for fireproofness if that is a word, as, like you say the way the system works has been the same for many years. That is unless they re invented the well worse again in 2014. I can see some kind of interlock based on a circuit and a relay that fails connected, and hence overheats the relay, but surely relays that are designed for such uses must be tested to comply? Brian |
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