will I be able to start unpressurised combi boiler?

[Carl Boatwright]

Can anyone help I have a combi boiler it's been off since August been having building work done my builder tried to start it yesterday nothing working none of the rads have been connected yet will it still fire up with no pressure to it ?

 

[Mottie]

No.

 

[Deleted member 267285]

Depends on the boiler - if it’s an Intergas eco RF 30, yes you can change parameters to hot water heater only, if not or you want heating, then no you can’t.

 

[Hugh Jaleak]

I think you need to get someone in who understands boilers, dry firing can easily wreck it!

 

[muggles]

Not unless it's an Intergas, no. How have you managed to have it switched off for all this time? Most people wouldn't want to be without for more than a day or two

 

[Mottie]

Why were you trying to start it with no rads connected?

 

[muggles]

Why were you trying to start it with no rads connected?

Presumably after 4 months without a shower they're getting a bit stinky, and want to freshen up for Christmas

 

[Elkato531]

In the summer I had a combi system which needed re-piping due to leak in ground floor screed. To keep hot water on I installed a loop of pipe between flow and return. Allowed boiler to be filled and pressurised so hot water worked until I could get around to the job.