Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
RCB keeps tripping on lighting rewire
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="matt1194" data-source="post: 490854" data-attributes="member: 32213"><p>I’ve recently wired up a new lighting circuit for the upstairs of my house due to it being dated and having no earth present. I called in an electrician to connect this circuit up to the consumer unit. </p><p> </p><p></p><p>However, when a load is added to the circuit the rcb trips out but the mcb stays on. </p><p> </p><p></p><p>I’ve removed everything from the circuit minus a single switch and a ceiling rose - again, it only trips when the switch is switched on and there is a bulb in the pendant. I’ve also checked the condition of the cables, all in good order. Both the switch and the rose are definitely wired correctly - the only thing I can think of is the electrician missing something within the consumer unit? </p><p> </p><p></p><p>I’ve taken a look behind the cover of the consumer unit and wouldn’t be brave enough (or stupid enough) to touch anything but shouldn’t this mcb be connected to the busbar coming out of the rcb? (See attached photo) I’ve circled all cables/mcb related to the new circuit. </p><p> </p><p></p><p><img src="https://talk.electricianforum.co.uk/uploads/imageproxy/6-CDB774-C-712-B-4-FAB-A5-A0-A93-A741-DB1-DE.jpg.72af7597b7f7446f97ca6bc135aa6ef8.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Any replies/help would be greatly appreciated as I’m currently without lighting upstairs <img class="smilie smilie--emoji" loading="lazy" alt="😒" title="Unamused face :unamused:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f612.png" data-shortname=":unamused:" /></p><p></p><p>Thanks!</p></blockquote><p></p>
[QUOTE="matt1194, post: 490854, member: 32213"] I’ve recently wired up a new lighting circuit for the upstairs of my house due to it being dated and having no earth present. I called in an electrician to connect this circuit up to the consumer unit. However, when a load is added to the circuit the rcb trips out but the mcb stays on. I’ve removed everything from the circuit minus a single switch and a ceiling rose - again, it only trips when the switch is switched on and there is a bulb in the pendant. I’ve also checked the condition of the cables, all in good order. Both the switch and the rose are definitely wired correctly - the only thing I can think of is the electrician missing something within the consumer unit? I’ve taken a look behind the cover of the consumer unit and wouldn’t be brave enough (or stupid enough) to touch anything but shouldn’t this mcb be connected to the busbar coming out of the rcb? (See attached photo) I’ve circled all cables/mcb related to the new circuit. [IMG]https://talk.electricianforum.co.uk/uploads/imageproxy/6-CDB774-C-712-B-4-FAB-A5-A0-A93-A741-DB1-DE.jpg.72af7597b7f7446f97ca6bc135aa6ef8.jpg[/IMG] Any replies/help would be greatly appreciated as I’m currently without lighting upstairs 😒 Thanks! [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
RCB keeps tripping on lighting rewire
Top