Visit of service engineer successful. We tackled the issues as you both suggested and, in addition, changed the house thermostat in the hall . Qe now have the "grumpy" boiler working beautifully. Thank you both very much for taking the trouble to help. Very much appreciated.
Many thanks for the advice. I've got the servicing engineer coming today and we will get the equipment detail. These i shall post up tomorrow. meanwhile thanks for your help.
Can someone advise an ignorant new boy. Our 30 year old trianco redfyre oil fired boiler has given wonderful service for years and we are very reluctant to lose it/ upgrade it/junk it. However it is causing trouble - specifically cutting out with red lock out light showing. Pressing restart...