Back home

Two weeks away with no stress or strain, great journey back, again with no stress or strain then get home to find the boiler seems to be on all the time.  Supposed to switch off at 7pm but still on with radiators going full blast an hour later.  I point this out and Ash goes into full stress mode!  However I've learnt over the past two weeks and shut up immediately.  will phone the plumber tomorrow.