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Mend Vokera mynute 12-48 rse Boiler Heating Hot Water Cylinder

how can i fix my vokera mynute 12-48 rse?

Boiler runs for one to one and a halve hours then the high limit sensor pops and I have to re set even at lower temps ,rads and hot water cylinder are all heating I have changed the high limit stat ,still not operating properly . High limit stat pops on constant or on timed.

malky
October 2012
Just to say that make sure all air is out from boiler and rads,vent pump by undoing big nut silver type open half turn,and refit to 1.2 bar pressure

ltd
October 2012
Pump blocked ,clean pump

ltd
October 2012

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