Thermostat upgrade help
I had a new 15k btu ac installed in 2012 and an analog thermostat was installed. I've ordered a new digital thermostat with control box, and according to Dometic, I have the correct one. However, th...
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smkettner wrote:clev wrote:
Just attempted to install a Honeywell 6450 programmable and followed every bit of advice/information that I could find. Really, it's pretty straight forward, but only used 4 of the 6 wires in my bundle. Turned the power on, the tstat lit up, set the parameters, turned on auto fan and cool, .........and nothing; no fan, no ac, no furnace. I've worked on this off and on for 4 - 5 hours. I called Honeywell twice and they don't know what's wrong either; maybe a faulty unit. I've read 20 - 30 posts about wiring a honeywell and no one, except me, has had a problem. This **** really gets old!
http://www.modmyrv.com/2008/07/14/rv-digital-thermostat
Can you post a picture of the wires connecting to the thermostat?
I can post a pic tomorrow, but it only uses 4 wires labeled Rc/Rh (jumpered), Y, W, and G. Initially I attached my green to the G but tech spt advised to attach the Blue.
Also, which 3 colors did you use on the dometic Tstat?
I'll try your wiring diagram tomorrow.
