I am new to this forum and I am currently having this problem at my house. I bought this 15 years old house this Summer so we didn't test the hydronic radiant floor heater, apparently our inspectors told us that everything is working fine. Recently, we found out that the floor in the upstair toilet is not working and our living room downstair is not heating. I checked on the Honeywell thermostat at each location and it looks like it receives power.
I speculated a few problems but not too sure if I am on the right track. I think it might be involved with the wiring that controls the manifolds to open warm water flow through the tubes or one of the valve is not working. What do you think? Does anyone has a phone number for Honeywell Controls? Since it is going to be so expensive in Canada to have the contractors to fix this problem, I hope if something minor, I can direct my contractor right into the problem instead being fooled. Please help!!!
Thomas & Tracy from Vancouver, Canada.