Overheat red fail

"Thanks to everyone who didn't say just read manual as any fool can do that." 

Agree totally, conecrusher, with your sentiments; and not just that, but I DID try reading the manual and it was no help whatsoever. Suggested an extremely long winded procedure a lot of which I could not follow and much of which was impractical for an ordinary mortal like me and all of which was entirely unnecessary (see above post).   

Further to my previous reply, when I actually took the panel off the top of the boiler as shown in the video, I found the wires were completely different. Found all the wires were electronic type connectors with a positive locking system. The wire for the rear pump was loose and fell out when I moved the main feed wires. Bit fiddly to refit, but all the connectors and wires are marked, so can't get them in wrong place.Have had no problems since and saved me taking van to dealer 20 miles away.

Brilliant answers . wonder how how much it would cost if out of warranty ? My land rover starter motor was playing up . garage wanted 800 quid to change it . Bit of googling solenoid 15 quid .hour on my back .

"15 quid .hour on my back ."

.....but a good rate