Problem with Honeywell controller for recently installed Worcester central htg boiler. Ben visited twice -second time to instal a new Worcester manufactured controller-the original could not be repaired All this in the middle of the Corona-varist alarm. He responded within a day of our request for help & fixed the problem with a replacement controller in double quick time which is now working perfectly ! No delay….no mess…… no close contact……..2 meter distance strictly observed.…