I just replaced the relay, as was suggested on this website, and it appeared to have fixed my problem of the dryer cutting off after a few minutes.
I sourced the relay from a local shop, as I was concerned that the same part can be found to have different amounts of connectors. The one I replaced had six connectors. There were others seen on various images on website with more connectors. It may be useful the know for others faced with this issue if all the relay's connectors are generic and work on all situations. Otherwise, I'd have bought it from RS too - as it was a lot cheaper.
Kenny, March 2009