Send an email to NCE - they are generally very responsive and if there is a problem your UK dealer will sort it out.
My NCE handset never changes temperature and it is a very solid piece of plastic so to me it sounds like a poor connection that should be sorted sooner rather than later.
My NCE handset never changes temperature and it is a very solid piece of plastic so to me it sounds like a poor connection that should be sorted sooner rather than later.