Glow worm 18hxi overheating high limit cuts in but display reads 35o

[swindon]

High limit cuts in with f5 but display reads 35oC
Replaced flow/return thermistors but still the same
flow temp gets to about 87oC
Differentials about 9oC on hot water
Any ideas?

 

[Rickster123]

This plumbing forum will not provide advice to anybody with regards to boiler repairs or any other form of gas plumbing without you first providing us with your Gas Safe Registration number in a thread - for very obvious reasons. If you're not qualified to touch gas, you should stay well clear of trying to!

 

[swindon]

gas safe number 46204

 

[Billy Bob Bob]

closed