Just to add normally the boiler seems to work fine, CH nice and hot very occasionally the HW will go cold and then come back hot again not sure if it’s connected
Hi all,
First post here go easy, I’ve had a look around and there’s similar faults on this forum but nothing matching 100%
Moved into a new house served by a Baxi Combi Duo-Tec 40.
Heating is over 2 zones upstairs and downstairs
We have a problem with what sounds to be the pump running...