In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
help upgrading 2 wire system thermostat!
A few months ago, my husband banged his shoulder into our old, round Honeywell thermostat breaking the little plastic bubble cover. I've thought about replacing it with a programmable, and used the accident to do so.
Bought a Honeywell programmable 5-2 at local big box store. Our system has oil heat and central A/C and I searched the internet for correct hook up for the black and white wires I have. Found a lot of info, all different! Finally settled on the white wire to "W", black wire to "R" with a jumper between "R" and "Rc". Turned the furnace on, got heat, programmed it and proudly showed my hubby my work when he got home.
Proud until today. 84 degrees in the house when I got home from work. Turned little switch to "cool" setting to cool the house off for the first time after this long winter, and, nothing. Lowered temp to try to get it to come one - nothing.
I then thought about my choice of wiring, as I was very confused. If it's wired wrong, could the heat have functioned this whole winter, but the air won't function on this mis-wired tstat?
Can someone help me? First, I need to know the correct wiring, but second, I'd li,e the VERY dumbed down version of what happened/how heat works by not air?
Thanks so much! Time for a cool shower and bed....hopefully it will be a bit cooler til I can figure this out...