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As a footnote, just for fun I bought a [4th?] new bulb from a different shop [but same brand – Eveready] and guess what all is well, and still well 6 months later! A faulty batch or just extreme coincidence, especially as I had swapped in and blown the working bulb from the other oven! … but no wonder I couldn’t find anything wrong.
electrofix wrote:if that is your email you have used as a forum name it may be an idea to change it. we are on a public forum and that means anyone can see and send you junk
as for the cooker i would trace the wires from the fan and see if it leads to a stat. if as you say the door open will bring it on then check the door switch
Dave
[yes it’s the email I use for forums]
Thanks – the wiring is complex. The wiring between switch and fan goes via several components and there is more than one thermostat. I cannot see a door switch so I am thinking: when i have the door open to clean I also have the light on. From memory there is what looks like a stat in each lamp unit, so it could be that heating up that puts the fan on while I’m cleaning, and that at least is accessible and so will test that first to see if it is open.Thanks, yes, there are several, all near heat points on each oven. I tried taking the lamp unit itself out, but it was too stubborn and I can’t see how or why it can be faulty.Tracked all wiring and cannot see any obvious problems. Think I shall see how it goes without the lamp. Then buy a new cooker if necessary.
I have learned quite a bit along the way anyhow. Many thanks for your help.OK, got the main control switch off [only half-broke the fixing – it click-fits into a collar around the hole in the front plate]. Examined switch – no sign of wear or overheating. Reassembled. Oven still works as normal, but replacing the lamp bulb it blows on switching lamp on and trips rcd. Suspect lamp assembly. There is a switch attached to the lamp assembly, which does what, I don’t know. Marked 0413 in image.
Any ideas anyone?
[IMG2=JSON]{“data-align”:”none”,”data-size”:”full”,”src”:”https://i.postimg.cc/qM7L780v/oven-fittings.jpg”}[/IMG2]It looks like it: six pairs connectors. Tells its own story in that the site doesn’t list the upper oven selector – which is truly only a function selector, not heat and function, so would rarely cause problems. It’s just a case of how to get it off though. On the parts diagram is 0231: ‘support’, which is fixed to the top panel somehow, and the selector may be screwed to that. I cannot see any visible means of support. It may even be a tabbed press-fit, in which case I’d best order another as well, I always manage to break one too many tabs. Hopefully someone has tackled this job before.
Noticed the lamp in the fan oven not working. Changed it: still out, but bulb tested good. Then after a few uses of oven, it flashed when turning on, and tripped rcd. Bulb not blown though. Has never lit since. Lodger then informed me that twice on previous week the fan oven wouldn’t work, but it’s been ok since, just no light. At that, he turned oven on. No light but turning the oven on tripped the RCD for the second time in, say 5 uses. On the controller the lamp microswitch is a gnat’s whisker away from the main element one, as far as I can trace the wiring, which is apparently the first one to distort through overheating. Once I get it off any damage will be visible, but at present the business side of it faces downwards against the deck.
Yay! It’s time to thank you for real: I finally got the panel off, using thin and thick steel scrapers for accessing and springing, wood wedges for holding clips off, and mole wrench for pulling!!. New fan is brilliantly quiet, though I was a bit worried by the fact that the new motor appeared to rotate the opposite way, which it does, so you do have to use the new fan, which is of course the opposite pitch.
Many thanks – yes, looking at the exploded drawing in good quality, I can see three pips down the side and 2 at top. I’ve ordered a fan and when it comes I’ll tackle it with a non-flexible scraper and some nylon wedges. From experience dismantling car interiors at least some of these pips will break off, so I have the gorilla tape on a short leash! Was not impressed with Hotpoint’s attitude of “We’re happy to sell you any part, but couldn’t possibly give you technical advice… Think of the HSE implications!” as against the experience with Neff, who gladly rang back and put a technician on the phone for a half hour to guide me as I did similar on their washing machine :(. Guess what I’ll buy next time!
I have removed cover 29 to reveal backplate 24, which has a screw either side of fan. Removing these doesn’t allow removal of 24 to access fan, yet I can’t see any clips around the edge, nor fit in a blade around edges to release any hidden clips, as the fit is so tight. There is no ‘give’ at all. In the diagram, cover plate 27 is a mystery, as it seems to be in the ceiling of the freezer cabinet, but there is no such thing in mine. How can I access the fan, as there is no access from the rear outside of the freezer either. Maybe there is a way I can upload jpegs to show what I mean? AHA!
