I am trying to install a Honeywell RTH9585 Wifi thermostat. The old thermostat is a mercury bulb type with 5 wires. Red, white, green, yellow and a brown C wire. I hook them all up to the new thermostat, reconnect the power and the thermostat does not light up. However, the funace fan starts running. This is the second Honeywell RTH9585 thermostat I have installed and had no problems before. thank you.

Hi, According to the compatibility checker it told me it would work but I would need to use the included power extender kit. When it arrived I followed the instructions except I'm using it on a gas boiler for heat only and I don't see the connections that the extender kit is looking for. I've spent a bit of time with ecobee support and they told me I need to find where the wires from the thermostat are connected to at the boiler. So far I've had no luck :-( [b]Here's a pic of my current thermostat, the wires are in the Rh, Rc, Y, G and W slots: Here's a pic of the zone controller: And here's pics of the honeywell aquastat: Thanks in advance for any and all help!![/b]