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boiler only runs with coverplate open?

hi
have a vokera excell 80sp combi boiler .boiler only runs when coverplate off or slightly adjarred.soon as plate secured boiler cuts out any ideas ?

martin
January 2012

Vokera Heating, Home Heating Systems Boiler Only Open

remove fan and clean impeller blades of dust build up. Clean fan venturis (part that the air pipes from the air pressure switch connect onto fan)

The master
January 2012

checked that pipe and it is clear

martin
January 2012

By removing the heatshield you are allowing the boiler to breath.There is a large bore pipe,only about 4ins long.This is known as a ventura.Air is drawn into the boiler through this pipe.Sometimes this ventura needs cleaning out.

paul
January 2012

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boiler only runs with coverplate open?

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