Just had the back off to get to the cut off switch which was playing up, same as before just had a wiggle and it's working again. While I had the back off I pulled one of the connectors to test something and as I expected it won't power up, problem is the switch is failing powered on so it can't be a connector issue, it has to be a switch issue.
Is it possible to buy a replacement switch? as it's a pain to disasemble everything
On another note, is there any issue with me designing a duct and putting a bigger fan on this to replace the inbuilt one as it's very loud when it comes on.