Hi, thanks for the replys. The original got a bit charred from a loose connection and I'm not happy just cleaning it and reusing, so I thought I would double check before searching for a replacement.
The heater has been installed for a few years,but was removed for decorating some months ago (without this connection being touched) and has been working fine since. It just stopped working the other night and on removing the cover I notice the charring on the connector and found the internal cable (to the elements from the connector block) to be loose in the connector. I have checked the resistance of each of the elements and tested the circut to the input thermostat. All seem OK and all the connections are clean & tight and the fuse is fine.
I want to get the replacement block in ready for when my electrician eventually makes it round to check it over.
Any heater spares websites in particular recommended or to be avoided?