Andy asked ... How can I mend my MacAlistair 450w hedge trimmer?    |    Felix asked ... Hitachi vt-m70em?    |    Katie Bond asked ... Fixing auto threader on Baby Lock Enlighten Overlocker?    |    Chris. asked ... Miele W800 novotronic washing machine?    |    Larry asked ... How to stop my steam iron from leaking. Model dw2463 Rowenta?    |    Click here to ask your question

Ravenheat gas boiler combi-pressure level?

Adjusted black marker to be level with red marker on 1 when boiler turned on for heating black marker moved to nearly 2 boiler turned off and blacker marker fallen back to 1.5. Should both black and red markers be at 1 when turned off?
John, November 2008
Red needle should be set to about a 0.5 so you know when to top up system.Black needle should sit between 1 and 1.5 when cold.When hot it may rise to as much as 2.5.This is ok.If it goes near 3 then you have a problem and will need a Corgi Engineer.

Gasman, November 2008
link Click here to see other fixes for Ravenheat.