Hmm.
Thanks for your replies.
I had a look at the PCB - this didn't show any signs of failure (ie no burnt components etc).
The pump is located in a cupboard and has a good amount of space all around. The cupboard is not ventilated, though.
I'll have a look on the S-T website to...
Hi,
I have a Stuart Turner pump that has failed. (The motor coils look dark at one side, it sparks when switched on and it was running hot).
I spoke to Stuart Turner - they don't repair pumps where the motor has failed, so I'm left with replacing the whole thing.
These seem a little...