Glow Worm Fuelsaver

[shaky]

Went to do a land lord ticket today in sunny Dinas Powys south Wales and the readings I got were Ratio 1680 co was 2800 any one had readings like this on this boiler before.

 

[mfgs]

Only on a glowworm energy saver with the worst burner in the world. Horrible water cooled thing, nightmare to change. Not nice boilers to work on at all.

 

[aggis]

Yeah, it just needs a good old strip service.
It's a copper/low water heat exchanger with very fine slots between the fins

 

[shaky]

Will it bring it down that much though.

 

[Billy Bob Bob]

yes it should,the high reading is telling you,gas pressures to high,restricted heat exchanger,or flue issues