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I have had this cooker for 4 years. In October 05 the element blew, blowing all the fuses. This was replaced, but since then I have had an intermittent but persisitent fault when switching the oven off. All the fuses blow and the cooker cuts again.
The engineer has replaced part of the cooling fan, checked the electric, and the selector, all to no avail. This morning he cleaned out the rotisserie motor, but it still is doing the same thing. He advised me to have an electrician to check the household electrics, which I did, but all fine there.
This has been going on for so long. Has anyone experienced the same or similar problems? Even if I set the clock now everything trips. AAGGHH!
Re: Smeg A 42 driving me mad!!!
Your engineer needs to use a meggar to test every element in both ovens (if he hasn’t done so already), one of them has an earth leak by the sound of it.
Dave.
Re: Smeg A 42 driving me mad!!!
The top oven is working OK, and I can use that without setting the clock (which trips all the fuses). However, he did get replace the (new) element in the main oven, which didn’t change anything. Would that still be an earth leakage? When the oven is warm I can’t even set the clock without tripping everything now.
Re: Smeg A 42 driving me mad!!!
Faulty new element (it happens ;)) or the upper/grill element could be causing it then.
Dave.
Re: Smeg A 42 driving me mad!!!
Do you mean the top grill element inside the oven? I have had 2 new back oven elements, so it seems hard to believe that they could both be faulty.
I can’t set the clock at all now, so it is difficult to test anything. I think I might just have to get a new cooker, although as this one was so expensive and it would work fine if I could just get this fault sorted, it is a bitter pill to swallow.
Thank you for your interest, it is keeping me sane!
Hi Caro,
Does this only happen when you switch the cooker off?
There’s also 9 variants of the A42 and it would help tremendously if we knew which one to look at, the differences are small and subtle but they could point us in the right direction. You should find the full model number on the edge of the main oven cavity.
To be honest on that machine I’d guess at the selector switch as usually an element won’t trip until you energise it, that’s not to say it couldn’t or doesn’t happen, just that it’s not normal. I’d say the switch as it sounds as if you’re getting a flash when power is removed, just enough of a spike to throw the trip which often isn’t hard at all I’m afraid.
Dave is correct though, the only way to be sure is to sit and test the machine thoroughly and, if the fault hasn’t been rectified and you’ve paid for it to be, any decent repairer should call back FOC and put the fault right. I know we would.
K.
Re: Smeg A 42 driving me mad!!!
Hi K
Thank you for your trouble. He tried the selector switch, but got the wrong one (the new one) which blew immediately he put it in. However, he said that the one that was in there looked fine anyway, and wired it all back up again.
Now the oven is cold I can reset the clock again. But once I put the oven on, it heats up, I switch it off, everything trips. I have had to replace the hard disk on my computer because it has been crashed so many times (this has been going on since October).
I can’t find the model no on the oven casing – it is a 90cm A42. The hob and top oven work fine.
Thank you for your kindness.
Caro
Re: Smeg A 42 driving me mad!!!
You are welcome. But it appears that our Italian friends are not so keen to help.
The wiring diagram, if it can be decribed as such, is little more than a silly schematic for the first version which is (as with many Italian gems of technical info) almost next to useless.
From what I can see though there is a seperate commutator switch for the upper and lower ovens, it is very possible that the incorrect one was gotten if the model number wasn’t correct and then the engineer managed to fathom what one was the lower oven. Not exactly the clearest diagram ever published and I only sussed it as there was a technical note on there from Tony Remidios (Smeg UK tech. guru) or I could have easily done the same.
As you can tell I still suspect that there’s some arcing going on in that switch causing it to trip out. It is possible, depending on the model version of course, that the overheat mechanism is also or alternatively faulty, but I’d need more info to pursue that further.
K.
Re: Smeg A 42 driving me mad!!!
Had a few oven fan motors lately causing tripping on those (despite meggerring OK), cannot imagine how it would do it on switch off but stranger things have happenned.
Re: Smeg A 42 driving me mad!!!
I’ve had a few where they’ve been arcing on make or break and the surge seems to be enough to throw a trip, especially if it’s a bit sensitive.
The thing that gets me Mark is that it’s doing this on powering down, normally it would trip as the faulty component was energised IME and, let’s face it, an A42 usually isn’t exactly a challenge. In fact I think this is the first time I’ve ever looked at the schematic for one.
But I take your point and I’ve seen the odd fan motor do the same. Don’t you just hate faults like that. 😉
K.
Re: Smeg A 42 driving me mad!!!
A line suppressor fitted as an auxiliary component would kill the flash……… Or even a low value capacitor across the “naughty” contacts. Job for an expert obviously….. 🙂
Penguin45.
kwatt wrote:Altering manufacturer’s specification
Absolutely true – I’d rather we didn’t – but what do we do? We fix things for people. Given the sites growing reputation, who knows? SMEG might even read this thread and say “Ay, da mad Pingwin’s right!”.
Well, maybe 🙂 .
Penguin45.
Re: Smeg A 42 driving me mad!!!
Would that be the oven fan motor as the next thing to try? Would a fault there mean that I was unable to set the clock, once the cooker had fused everything, without tripping everything else again, even when the oven was off?
Thanks for all the advice
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