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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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Help! Cracling noise (and flickering light) on Cooker Switch
Hi,
- I'm no sparkie expert, but could do with some troubleshooting advice - I've had a Brittania cooker installed for over 2 years now. It's a dual-fuel cooker with the Electrics supplying gas ignition and two cookers (one has a fan in it). The cooker is wired as follows : Fuse Box Dedicated RCD - Cooker Switch - Extension Cable - Sealed Junction Box - Original Cooker Wire - Cooker All cables with use a 40A cable and is more than ample for the power draw of the cooker. Recently my wife has been telling me the switch has been making a crackling noise. We tend to turn off the cooker at night using the cooker switch, so upon switch on (along with engaging the cooker) it makes this noise. To be honest, I avoded looking into the problem, but today we smelt a very strong burning smell. So I opened up the Cooker switch and took a look behind it. It looks like the Blue Supply cable has become fried i.e. the last 2cm of it looks burnt and singed. I thought it may have been a general connection problem , so I trimmed off the singed bit and reconnected it again. Although there was no smoke this time around, a lighter crackling noise could be heard and the cooker light switch was flickering feintly. I also tested it by removing the Load connection (i.e. disconecting the cooker). If this is done, then there is no crackling or flickering cooker light. I'm just trying to figure out the point of failure... What could cause this ? By making this last test (of disconnecting the cooker, and the switch is not crackling) does this tell me that my fuse box and cable supply is fine ? Does this imply that anything to the right of my cooker switch diagram could be faulty ? I'd be happy to purchase a multi-meter to help narrow down the problem. I just need to know if I should pay out the call out fee to have my cooker looked at, or whether I should call a sparkie. I'd rather do the elimination work myself. Any advice would be appreciated. Thanks |
#2
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Help! Cracling noise (and flickering light) on Cooker Switch
Colin Wilson wrote:
Could it just be a faulty switch ? Sure it could - but while you're at it, i'd be tempted to replace the patched up wiring to the cooker... Indeed, preferably before someone dies. -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
#3
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Help! Cracling noise (and flickering light) on Cooker Switch
"Colin Wilson" o.uk wrote in message g... Could it just be a faulty switch ? Sure it could - but while you're at it, i'd be tempted to replace the patched up wiring to the cooker... It is not that badly patched up. There are no more terminals or connections than a circuit using a cooker outlet plate would have. There is a loose terminal somewhere. Every terminal need to be checked (right back to the consumer unit) The cooker switch may have been damaged by the localized heat and may need to be changed. Adam |
#4
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Help! Cracling noise (and flickering light) on Cooker Switch
"ARWadsworth" wrote in message om... "Colin Wilson" o.uk wrote in message g... Could it just be a faulty switch ? Sure it could - but while you're at it, i'd be tempted to replace the patched up wiring to the cooker... It is not that badly patched up. There are no more terminals or connections than a circuit using a cooker outlet plate would have. There is a loose terminal somewhere. Every terminal need to be checked (right back to the consumer unit) The cooker switch may have been damaged by the localized heat and may need to be changed. Adam Could be due to grease getting into the contacts. |
#5
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Help! Cracling noise (and flickering light) on Cooker Switch
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember DarkKnight saying something like: Could itjust be a faulty switch ? Most likely - they don't last forever. |
#6
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Help! Cracling noise (and flickering light) on Cooker Switch
ARWadsworth wrote:
There is a loose terminal somewhere. Every terminal need to be checked (right back to the consumer unit) The cooker switch may have been damaged by the localized heat and may need to be changed. Even if all the terminal screws are tight a faulty contact in the switch could lead to arcing which would heat up the switch terminal and the end of cable. -- Mike Clarke |
#7
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Help! Cracling noise (and flickering light) on Cooker Switch
Hi all,
Thanks for the responses. I've replaced the Cooker switch and now I do not get any crackling or flickering light. I'll keep my eye on it over the next few days, particularly, when the electrical demand is higher with the Fan on. But hopefully, this has fixed the problem. Thanks all for your help. Cheers |
#8
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Help! Cracling noise (and flickering light) on Cooker Switch
The message
from DarkKnight contains these words: Hi all, Thanks for the responses. I've replaced the Cooker switch and now I do not get any crackling or flickering light. I'll keep my eye on it over the next few days, particularly, when the electrical demand is higher with the Fan on. But hopefully, this has fixed the problem. Thanks all for your help. Cheers |
#9
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Help! Cracling noise (and flickering light) on Cooker Switch
The message
from DarkKnight contains these words: Hi all, Thanks for the responses. I've replaced the Cooker switch and now I do not get any crackling or flickering light. I'll keep my eye on it over the next few days, particularly, when the electrical demand is higher with the Fan on. But hopefully, this has fixed the problem. Remember that these switches are not made for being turned on and off frequently. If you use them frequently they tend to have a short life. |
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