I have 2 zones - ground floor working fine. Upstairs thermostat is in main bedroom. Heated towel rail in upstairs bathroom and radiator in bedroom 2 upstairs only come on when downstairs zone is operative and don't heat up via the upstairs system. Why is this and what do I need to change? Thanks
No reason for it being like this as zones can be literally any radiator combination. Pipework under the floor would need altered to modify the zones.
hi normally if you have 2 zones, they can work independently, you may have a system not installed in this way, as, when c/h on you can have upstairs heating off. not the same as 2 seperate zones as above if this is the case, would need a look at to see what's needed. it is possible it's plumbed in correctly, but not wired correctly, and when upstair zove opens it's not firing the boiler good luck peter