Glow Worm Fuelsaver Mk2 40 B delay to fire up?

also with the new government scrapage scheme now in place for all G-rated boilers you can get £400 off the cost of a new A-rated appliance and depending on the make extra warranty if installed by recommended installers. If you don't have any luck with the old unit go for this offer..

Iain
January 2010

if you remove the outer cover (1 screw underneath and gently lift off) you'll find the tech badge fixed on the outside of the outer burn chamber casing. the G.C. No. should read 4131596 for a glow-worm fuel saver 40B Mk II.

This boiler is range rated, meaning the burner pressure can be adjusted between a set range as laid out by the manufacturer depending on the size of installation (amount of radiators it heats) the range rating is also found on the tech badge. by adding 2 extra rads you may have put the unit under strain and would need to re-calculate your whole house with the additional add-on's to find what input you need in Kw's. it is very important not to over compensate your burner pressure as this leads to a spiral of problems which eventually will lead to the unit failing completely as well as being extremely dangerous.

As for the delay in the unit kicking in when calling for heat you will probably find the thermostat is carbonised and if not in any way damaged simply needs a clean. My advise is to call a registered gas engineer to fully service the unit, if they open up the burn chamber remember all seals will need replacing to ensure it stays properly room sealed. if these are damaged you run the risk of the products of combustion leaking into your house, this can result in carbon monoxide poisoning for you and your family if the unit is not running well.

good - luck

Iain
January 2010