vokera boiler not 2yrs old yet , wont work?

"have managed to get pressure gauge to normal level as it does tend to drop frequently" - it shouldn't be doing that. Pressure is going SOMEWHERE

"bled my rads just incase they were upseting the boiler system. " - that may have dropped the pressure again; you'll be able to check properly with the system cold.

Did you register your boiler (Vokèra Linea One, Unica i, Mynute i or Vision boiler)? That'd have given you a 5 year warranty on the boiler instead of 12 months. - http://www.vokera.co.uk/homeowners/boiler-maintenance-2/register-boiler/register-5-year-product/

Dunno about other Vokèra boiler models.

Vokèra do offer fixed price repair:

http://www.vokera.co.uk/homeowners/boiler-maintenance-2/repair-plans/

That'll probably only be the boiler, so go round as much of the rest of the system as you can and eliminate that as a reason for losing system pressure thru a leak. Check for weeps and leaks at each pipework joint you can find, each rad valve, each drain off valve and each bleed valve.

There will also be a pipe that leads to the outside, which relieves overpressure in the system, via a pressure relief valve (PRV). Check this isn't weeping, which would suggest a problem with the pressure relief valve (Tie a plakkie bag over the end and see what collects).

If Vokèra are like Glow Worm, they may offer a 1 off fixed price call out (Beware: that may or may not include cover for the heat exchanger and the expansion vessel) and an alternative thru the likes of Domestic & General for a monthly fee. That MAY include the other items. The Glow worm offering was £299 for a fixed price one off callout or £50 a month for a minimum of 6 months for a service contract - Still £300 total and with service still provided by a Glow Worm engineer who has all the bits in his van. No contest really.

Plenty of Google search results that are for similar problems.

Some that may help:

http://www.diynot.com/diy/threads/vokera-compact-28-losing-pressure-daily.262173/

http://community.screwfix.com/threads/faulty-expansion-vessel-in-vokera-boiler.123815/

http://www.justanswer.com/uk-plumbing/52otv-vokera-boiler-losing-pressure-constantly.html

http://www.ultimatehandyman.co.uk/forum1/vokera-29he-loosing-pressure-t56290.html

http://blog.superwarm.co.uk/5-common-faults-of-a-vokera-boiler-and-how-to-fix-them/

XXX
December 2016