Mullardman
Moderately extreme...
Went to Allspares in Wigan who are usually pretty on the ball. The chap said he's need to order the relay but in his experience when this had been tried on spec it never solved the problem.. IE the fault was not with the relay but with the compressor. So I didn't order the bits. Then contacted a local fridge repairer with a good 'rep' who has a relay. I'm collecting it later he's only a couple of miles away.. 8 quid. Worth it to find out. If that doesn't sort it. New fridge.