Bosch boiler problem

hornetstinger

hornetstinger

hornetstinger

Soldato
Joined
6 Sep 2016
Posts
16,067
British gas Bosch boiler, combi.
Hot water gears fine.
Thermostat does not start the boiler, if I manually increase desired temp to say 30 degrees the gas flame icon appears which should set the boiler to radiator on. But boiler does not kick in


How do you do a RF reset / relock onto the thermostat? Batteries are new enough.
 
I topped up the radiator pressure last week, it was switching on rad before that, it's at the correct pressure now would not turning and removing the plastic key/plug correctly cause the boiler not to hear up the rads?
 
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