My most recent problem with this boiler is the CH doesnt work but the hot water seems to be working fine although when it is on pressure goes soaring past 3 Bar. An earlier problem resulted with me getting a "NEW" expansion tank, then these problems started. Any ideas anyone?

Robert, October 2006

Robert,

Could be a faulty PCB board or possibly a faulty thermistor on the CH side. You will need a CORGI engineer to have a look and repair it for you

Neil, October 2006