Honeywell Wifi Thermostat

[TexasBrandon]

Not sure if anyone here is HVAC savvy but here it goes. I tried to install one of these today, the box said I needed a C wire but the honeywell site said if I didn't have one I could use the existing jumper system and it would still work off of the RH wire. I tried about every combination I could think of, the Y,G,and W were common sense wires to where they go but I had an RH wire and a jumper in the RH to RC slow on my older current thermostat.

Any ideas on how to get this unit to work and power on or am I going to have to run a C wire from the A/C/heating unit? The unit itself in the garage is relatively new, within the last 8 years or so new so I would have assumed a C wire would have been ran but maybe not used but I didn't see one in the wiring hole behind the thermostat.

 

[c.tiberius]

Post a picture of the connections made in your furnace unit. You need to match those to the thermostat as not everyone respects the "code"

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[TexasBrandon]

https://1drv.ms/i/s!AgfL_6cF0sv910hMpIJSW01W3nTb


Above is the image from the original wall panel unit, I'll have to wait until day to get one of the A/C / Heating unit. I need to check anyways to see if another wire is there and just wasn't connected up. I need to find another free image sharing site, ever since imageshack and photobucket went paid I've been sharing via my one drive.

I guess the good news is, with my stupidity of trying different things based on the website and some theories, I didn't short circuit anything as the original unit works just fine. The new unit is much cleaner in design, too bad I can't use it just yet.

 

[c.tiberius]

The picture helped.
What you need is to get the blue wire out and connect it to C in the thermostat, also in the furnace you need to connect the blue wire from the thermostat together with the blue wire from the condenser in the common.
Just to be sure, post a picture of the furnace board. In case they used something else than blue for common.



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[TexasBrandon]

I'll take a look at it first thing in the morning, thanks for the help. I'm assuming the blue wire is sending 24 volts then?

 

[c.tiberius]

That is correct, the blue wire completes the circuit to give you constant power to your thermostat. 24v

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