problems with worcester bosch 24i junior pressure keeps rising to around 3 and red warning light then flashes - key has been used but is now stuck in place, can only control problem by pressing reset and turning down thermostat which controls central heating, any advice gratefully received.

mark, April 2012

Take some water out from radiator to bring down to 1 bar,when hot it will go up to 2 that ok if goes to 3bar than problem with expansion tank need recharge

ltd, April 2012