Wiser Underfloor Heating connection strip LED behaviour chart. Follow See the whole LED behaviour chart here : LED Behaviour Related articles Do I need an extra heating channel to use UFH with Wiser? Are there any accessories available with the Wiser Underfloor Heating Controller? What do the LED indicators on my Wiser Underfloor Heating Controller mean? How many actuators can be linked to one Underfloor Heating zone? Which thermostats are required to control the Wiser Electrical Heat Switch? Comments 0 comments Article is closed for comments.