honeywell TH4110D1007 thermostat

pashley

My ac is working and the digital display and backlight is on but when I press the up and down arrows the temperature will not change it is staying on 78. I tried changing the battery and still have the problem. Central air conditioning in Florida.

hvactech126

sounds like you need a new thermostat.

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pashley

I am replacing the old Honeywell TH4110D and the wires connected are
W White
Y Yellow and white
G Green
O no wire
Rc red
R red with the Rc and R has jumper in
B and C no wire

Have bought a new Honeywell RTH6350D 5.2 day
These wires show a Y2, W2, G, W, Y, R and Rc
My question now is should I put wires the same as old with a yellow and white on the yellow or put one white on the W2.

Attached Thumbnails

 

Hvacwin

One of the reds to R and the white to Y must be part of 2 wire feeding to some dedicated circuit.

hvactech126

Wire it the same as the old.

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Hvacwin

Could use a picture of the wires where they meet at the unit

DiYRegular

It really seems like you need a new thermostat because your current one can't detect temperature.. or change it.. hm..... at least I guess so.

pashley

Thanks to all. Replaced it with the new Honeywell and attached wires same as old one. Everything seems to be working okay.
Thank you for all the help.