Fuse box problem?
Just had the plastic fusebox changed to metal on recommendation of electrician. Our Miele oven which we have had for 10 years - no problems, now blows the fuse after it has been on for a while. Is this coincidentally an oven fault or could it be connected to the installation of a new fusebox?
38 Answers
Quality Interior Solutions,Ltd
21 Reviews, 100% Positive
Make sure your fuse for kitchen appliances has enough Amperage to hold enough power of the circuit. Otherwise it could be cult in oven or connection
2nd Oct 2022
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This could potentially be to the new sensitivity on the new consumer unit, (Rcbos/Rcd)
17th Oct 2022
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JW Electrical Services
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Yes well there are a number of factors which coincidently can cause your circuit breakers/RCD to trip.
First thing we always do, as with any fault on a circuit is to isolate and make safe. Your safety is our main priority.
Now if you have had a new consumer unit installed by a qualified electrician, then it would be safe to say that the wiring regulations and circuit parameters should have been met in accordance with BS7671, although we would test to prove this ensuring the electrical supply is safe to work on.
We would then need to determine the route in which fault is being introduced to the circuit, i.e a short circuit or an earth fault.
This can be determined by a simple insulation resistance test between the conductors. Disconnecting the cooker and testing individually would be the best way to localise the fault and further provide a more accurate diagnostic.
I this case it sounds like a build up of voltage leaking somewhere on the circuit of cooker “nuisance tripping”.
Easily fixed once faulty parts are located removed and replaced.
(Apologies with the lack of capital letters in this answer, for reasons unknown, the site showing only lower case)
First thing we always do, as with any fault on a circuit is to isolate and make safe. Your safety is our main priority.
Now if you have had a new consumer unit installed by a qualified electrician, then it would be safe to say that the wiring regulations and circuit parameters should have been met in accordance with BS7671, although we would test to prove this ensuring the electrical supply is safe to work on.
We would then need to determine the route in which fault is being introduced to the circuit, i.e a short circuit or an earth fault.
This can be determined by a simple insulation resistance test between the conductors. Disconnecting the cooker and testing individually would be the best way to localise the fault and further provide a more accurate diagnostic.
I this case it sounds like a build up of voltage leaking somewhere on the circuit of cooker “nuisance tripping”.
Easily fixed once faulty parts are located removed and replaced.
(Apologies with the lack of capital letters in this answer, for reasons unknown, the site showing only lower case)
27th Oct 2022
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Could be connected to the installation get the electrician back to check his work over
11th Jan 2023
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Looks like previous fuseboard wasn't RCD protected. Oven could have earth leakage problem for a while which is now being detected by RCD.
5th Dec 2022
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MAK IMPROVEMENTS
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Hello, possibly fault with your oven or connection in your new fusebox for oven, did you inform electrician who replace your consumer unit (fuse box) of your concern.
31st Dec 2022
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By the sounds of it, the new consumer unit has either RCD protection or RCBO protection. This means that it will be detecting a fault in the circuit which causes it to trip. Personally I would say that this is a fault with the oven as you have to turn it on before the switch trips. I would recommend getting someone to find and repair the fault on the oven, or just simply replacing the oven.
20th Jan 2023
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Hi, change the oven, or let someone to have a look first at consumer unit.
17th Apr 2023
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Phazed out electrical
1 Reviews, 100% Positive
I would have to take a look at your fuseboard , it could possible be on a wrong size mcb or rcbo , or it might be one of the, heating elements inside the oven , which can be replaced , could also be the selector switch or fan , would need a closer look really to be sure
28th Jan 2023
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No1 Electrical Ltd
0 Reviews
Earth leakage or dead short is the most common cause of rcd and fuse trips.
Examin the wiring system and make sure it is
Sound and correct.
Please contact a qualified electrician to undertake work.
Examin the wiring system and make sure it is
Sound and correct.
Please contact a qualified electrician to undertake work.
16th Jan 2023
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Brown's electrical
1 Reviews, 100% Positive
Earth leakage from cooker gets greater as it warms up and trips the fuse. New board maybe rcd old may not have rcd. Wrong size breaker...
26th Apr 2023
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Ferguson Electrical Services
0 Reviews
Sounds like it could be to do with the oven being connected to a smaller sized circuit breaker than previously, overloading the circuit which would then trip the breaker.
14th Apr 2023
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A&M INSTALLATIONS LTD
2 Reviews, 100% Positive
You will need an electrician to check the circuit
And the appliance
And the appliance
17th Jul 2023
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SLH ELECTRICAL SOLUTIONS LTD
0 Reviews
A new, 18th Edition consumer unit, or fuse box is almost always a good idea, but that certainly shouldn't be occurring.
First port of call would be to check the rating of the Miniture Circuit Breaker or RCBO allocated to the oven circuit, and check if it correctly rated.
If it is, then further fault finding would be necessary, though I suspect its been mixed up with another, smaller circuts protective device & that's leading to nuisance tripping.
First port of call would be to check the rating of the Miniture Circuit Breaker or RCBO allocated to the oven circuit, and check if it correctly rated.
If it is, then further fault finding would be necessary, though I suspect its been mixed up with another, smaller circuts protective device & that's leading to nuisance tripping.
8th May 2023
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KRW Electrical
0 Reviews
Sounds like the insulation continuity of the oven element when getting to full temperature, it could also be the internal thermostat. Highly unlikely an overloaded circuit but this is also a possibility.
15th May 2023
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Gsbelectrical80
0 Reviews
This could be a fault with the heating element within the oven that is causing the mcb/rcd to trip out.
17th Aug 2023
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There is fault in wiring new fuse boxes are very sensitive even little fault in wiring it’ll start tripping
29th Aug 2023
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Nene Valley Electrical Services
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If new consumer unit has a RCD fitted this would be likely to be the element in the oven
5th Oct 2023
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Jta installations
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Sounds like the oven is on an incorrect size MCB
24th Nov 2023
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JS Electrical
1 Reviews, 100% Positive
Possibly an oven fault but if the oven has only just started tripping since the new consumer unit, it could possibly be on a breaker too small, make sure it’s on a 32 or 40A circuit breaker. But also if you now have RCD protection which you did not have previously. It could also be that. Get an electrician in to test the circuit and the wiring at the connection points.
5th Dec 2023
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The operation of the fuse is due to drawing too much current, which can be from the device itself, and it can also be from the fuse output circuit, and it can be from the fuse itself.
8th Dec 2023
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You would need to check the size of the protective device the electrician has put on the circuit, this sounds like your oven is drawing to much current over a long period of time causing your protective device to trip
4th Dec 2023
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Definitely sounds like it. but should get it checked out by a professional person (Cable size to MCB or RCBO size even a loose connection when the fuse board was fitted, so many things this could be.
6th Feb 2024
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CAG ELECTRICAL LTD
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The Electrician can arrange for a Call out appointment to investigate if it's the case of an overload or an RCD fault.
17th Jan 2024
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Teodor
4 Reviews, 100% Positive
Depending on what circuit braker is connected for that oven. Should be 32a circuit braker for using the oven without any issues. And also should have 6mm cable avoiding any problems.
17th Jan 2024
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Synergy electrical
0 Reviews
Hi
Is it the mcb that is tripping or the rcd protection? Was previous plastic consumer unit have rcd protection? It could be that a heating element/stat/light fitting may now be causing the new rcd unit to operate
Is it the mcb that is tripping or the rcd protection? Was previous plastic consumer unit have rcd protection? It could be that a heating element/stat/light fitting may now be causing the new rcd unit to operate
26th Jan 2024
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PowerOn
0 Reviews
I will more likely looking for problem with heating elements on the oven
6th Feb 2024
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Greg Robertson
0 Reviews
The new main switch might be rated lower than it was before. Recommend an upgrade in rating of main switch
16th Apr 2024
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Blades electrical
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The new fuse board would be upgraded with an rcd/rcbo which is more sensitive to earth leakage and it picks up older appliances that may be faulty
18th Apr 2024
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It's possible that the issue with your Miele oven is coincidental, but it could also be related to the new fuse box installation. Sometimes, older appliances might struggle with the more sensitive protection provided by new consumer units. To determine the exact cause, it's best to have an electrician inspect both the oven and the new fuse box. They can check if the fuse rating is appropriate and ensure there are no underlying issues with the appliance or the electrical installation. This will help in diagnosing whether the problem lies with the oven itself or if it is due to the new setup.
17th Jun 2024
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Electrician
0 Reviews
Though BS7671 18th Edition recommends a non-combustible consumer unit (metal casing). The electrician should focus on the root cause of the issue, if there is a safety concern and no spare to resolve the fault permanently, then a swap out could be an option to explore.
22nd Jul 2024
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Bright lighting and solutions ltd
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More than likely your consumer unit has identified a previous fault in the cooker
20th Aug 2024
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It could be either, possibly an existing fault on the oven or the wiring, or the new equipment installed may be more sensitive. Is the fuse controlling the oven the same rating as the old one, or has the electrician downgraded it to a lower rated one?
22nd Oct 2024
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