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Darkwood
I'm under no doubt the crimp(s) are the cause of the repeating issue here, when you overheat metal it changes its properties and with crimps it makes them not fit for purpose, you need to try get hold of some pre-crimped wiring looms for the appliance, you will not have the correct crimps and/or crimper to do this kind of crimping, If you were to buy one it would cost you more than the appliance itself, you cannot cut corners on high current high duty connections like this (with regards to the CSA of the cable), I see it all the time with previous attempts with budget £30 crimpers causing the problem to reoccur.
agree, but i see it loads of times on factory fitted spade crimps. notably on catering equipment. must go to a certain pub at least once a month to fit new D/P switches and burnt 0ut crimps on carvery warmers.
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Darkwood
I would say Tel its down to the quality of the factory provided crimps, after time the crimpers need calibrating or they can suffer mechanical drift and wearing down, as this is often massed produced in poorer countries with sweat shops making up the wiring looms then after a few years the quality of the final crimp suffers, it is also brand dependent, some are well aware of such issues keep on top of it with regular checks and calibrations.. add to that the quality of the crimps themselves that only have to be out by a fraction a mm and no matter how good the crimp is done the final connection will fail - spade connections speed things up in manufacturing but this is a downside of the process.
I have EXACTLY the same problem as above! I have replaced my oven selector switch 3 times in the last year and the last one only lasted a month!, it has melted each time in exactly the same place as the previous post above, so it looks like I have to change the connector wire and the crimps attaching to the switch (again suggested above).
But my question is what sort of wire is needed and where would you buy the wire and crimps? Being a DIYer I’m not sure where to source these bits. I’ve got a new switch ready to go but no point replacing it without a new wire if this is part of the issue
But my question is what sort of wire is needed and where would you buy the wire and crimps? Being a DIYer I’m not sure where to source these bits. I’ve got a new switch ready to go but no point replacing it without a new wire if this is part of the issue
Probably your best bet for a replacement crimp is to use one of there that can be done with a normal insulated crimp tool:
The red one will work if your cable is 1mm CSA, or the blue one if 1.5mm, if unsure get a couple of each and check when you strip the wire, if it fits the red one use it, otherwise blue! Get a proper ratchet crimp tool if you don't already have one, something like:
Or cheaper:
www.screwfix.com
The red one will work if your cable is 1mm CSA, or the blue one if 1.5mm, if unsure get a couple of each and check when you strip the wire, if it fits the red one use it, otherwise blue! Get a proper ratchet crimp tool if you don't already have one, something like:
Or cheaper:
Error 410 | Screwfix
Thousands of products at low trade prices | FREE next day delivery available | 30 day money back guarantee on all orders.
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If the wire looks OK then just cut the old crimp off leaving as much conductor as possible, and crimp the new flag style terminal to it after stripping it carefully.
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Let us know how you get on. As already mentioned, look for any recall info, etc, as it might have been a bad batch of switches or similar, but a push-on terminal that is not well connected can cause a fair amount of heat.
When I clipped the old spade connector off the wire it was obvious the wire was knackered, I clipped it back a bit more but the copper inside was still in bad shape. I got some heat resistant 3 core oven wire and took one of the wires out of this, and put the spade connectors on each end. Fitted the new switch and everything is working fine. Hopefully it lasts this time. Many thanks for your help
Hi everyone,
If...
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