Thanks!
Can you smell where about the burning smell is coming from – and if you put your nose close to the smaller EV consumer unit, is there a faint smell of the burning?
There looks to be a henley block to the botton left of the meter (above the earth block), but I can’t make it out clearly, as the can pose problems where the tails can become loose, if not torqued down properly or if just a screwdriver is used. However, there only seems the main house consumer unit tails, being supplied from the meter and the EV charger consumer unit fed from the main consumer unit (I’d be interested how they have done that with tails)
Points:
- Does the EV charger have a dedicated RCBO (MCB) in the consumer unit?The top cable gland in the main consumer unit, doesn’t look fitted correctly!
- When the electrician replaced the consumer unit, did they supply you with a EIC (electrical installation certificate), as a board change is notifiable work to the local authority buidings dept?
- Did your DNO attend to upgrade the main cut out fuse, when first having charger fitted.
My advive, based on the electrician has completed his work to the relevant standards and has carried out the necessary testing, it can be assumed that side of the installation is safe. This leaves the EV consumer unit and its circuit and given the burning smell seems to arise when you charge your car and where, I initially thought the problem would be, along with if the EV consumer supply was connected via an Henley block, through splitting the tails from the meter. One thing, that is niggling me, is how the £emergency” electrician, has connected, the EV charger tails inside the house consumer unit, which hopefuly you can answer through my pointers questions above.
For safety reasons, due to risk of fire, I would isolate the main switch on the EV consumer unit and if supplied from an RCBO in the house consumer that to. Tomorrow, you then need to ring Ohme, and get them to come out and check their equipment and wiring.
If, with the EV side isolated, you get the burning smell, you would need to contact the electrician who did the work again, as a matter of urgency for them to attend again. Their work will carry a guarantee and its upto them to put it right, especially if they have missed something, they should have spotted, when carrying out their testing or through error.