Hi my heating is working upstairs but not downstairs any ideas ? please help im freezing :

Dee
December 2015

to prove if it's the programmer slacken the 2 screws holding the programmer to the back plate hinge up the programmer off the back plate, does the boiler still run? If not, then it's the programmer. If it carries on running it could be one of the valves that is either stuck open or the microswitch is faulty

toptrish
September 2013