I have underfloor heating downstairs, which is working fine and I'm getting hot water, but the upstairs radiators aren't heating at all. I've bled all of the radiators and there isn't trapped air.
The system has a Smart Comfort LK100 controller, a round Wilo circulating pump unit, a Wilo Yonos Pico digital pump unit and two motorized Honeywell zone valves.
The Wilco Yonos Pico unit isn't showing a digital display, so I suspect it's a power supply or electrical component problem with it. However, is this likely to be the issue with the lack of heat to the upstairs radiators? I don't know if this is the unit which controls the flow of water to the upstairs circuits or not....?
The system has a Smart Comfort LK100 controller, a round Wilo circulating pump unit, a Wilo Yonos Pico digital pump unit and two motorized Honeywell zone valves.
The Wilco Yonos Pico unit isn't showing a digital display, so I suspect it's a power supply or electrical component problem with it. However, is this likely to be the issue with the lack of heat to the upstairs radiators? I don't know if this is the unit which controls the flow of water to the upstairs circuits or not....?
