








HelloTech Says System not Compatible?
Hello all!
I am trying to get an ecobee thermostat installed in my apartment. I’ve attached some pictures if anyone could give me any guidance!
My system is an all-in-one heating / cooling system located in a small room out on my balcony.
The wires coming to the thermostat are W, G, Y, and Rh(with a jumper to Rc).
There is an unused green wire behind the thermostat, and I was hoping to convert that wire to a C-Wire. And that’s where I start to feel like this is a little above my abilities, so I hired someone through the ecobee recommended site HelloTech.
The tech came out and took a look, and said that because there is no control board my system is not compatible with the ecobee. This is where I’m a little confused because there does seem to be a control board - although it is different than a lot of conventional ones.
The furnace seems to be using a RobertShaw 780-715U Ignition Control board. There is a warning on the box about high voltage, although there is nothing about that on my current thermostat, and the voltage listed on the control board is 24V.
As you can see in the pictures, the wire bundle coming from the thermostat does not appear to be hooked directly to the control board. Instead most of the wires are capped off with other wires. For example - the green wire I was hoping to use as C seems to be capped off with the blue wire (g) coming to the thermostat as well as another white wire which goes further into the furnace. Ex 2: The white wire (w) coming from the thermostat is capped off with another white wire that seems to go straight to the 24v transformer.
My first question is: is my system truly incompatible with the ecobee? And my second question would be: is this something I could reasonably do myself, or should I look for another tech (or HVAC/electrician) to come take a look?
Thank you for any help you can give me!