Thermostat wire blue and yellow wire

jpietrzak Posts: 1, Reputation: 1

New Member

May 27, 2013, 05:29 AM

Thermostat wire blue and yellow wire

I switched from an old mercury thermostat to a new programmable thermostat and found a blue and yellow wire. I know where and what all the other colors do but not the blue one. The temperature is not going below 79 degrees. What do I do with the blue wire?

Check out some similar questions!

Rewiring an old 2 wire Taco thermostat.. blue & white wire only [ 6 Answers ]

Hi, I have an old 2 wire Taco analog thermostat and want to upgrade to a digital thermostat. The wires are white and blue (the red wire is cut and not connected to anything) and neither terminal is labelled. Any suggestions on how to wire new device? Thanks

What to do with the yellow wire on heat only thermostat? [ 1 Answers ]

What do I connect the yellow wire too. It is saying I have an open circuit and the heating system shuts down for 3 hours

Thermostat color code? No Yellow Wire. [ 7 Answers ]

Hi My Name Is Lindsay And Im Having Trouble Installing My New Honeywell thermostat:o it's a non digital thermostat, round one the old fashioned kind, I don't know where to connect which wire because I don't know which wire is which I have the following wires Green Brownish?:o White Red...

Where does the blue wire go on a thermostat [ 2 Answers ]

I have a older programmable thermostat with red, white, yellow, green my wire out of the wall are red, white, yellow, blue

How to wire noma with 5 wires blue, white, green,yellow, red [ 0 Answers ]

Noma I have o/b , y , r, g, w. I do connect why to yellow, are to red, g to green, w to white and o/b to? If I connect blue to o/b only AC works but no heat . But should I change to so AC and heat work. Thanks

View more questions Search

Check out some similar questions!

Add your answer here.