Yes you should get that fixed. I had an old fuse box and just wanted to get a new one, thinking the wiring was ok since the house had been sold as "rewired". The electrician came and said there was old and new wiring mixed and this was totally unsuitable. He ended up completely rewiring the entire house as trying to fix the mess could have created even more problems. I then received a Reiki Cert for the work done. So whatever Cert you have, you should follow up with them as suggested.