Ask Experts Questions for FREE Help !
Ask
    amber1725's Avatar
    amber1725 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 10, 2011, 10:38 AM
    I installed an RTH2300 this winter to replace an old mercury thermostat.
    I installed an RTH2300 this winter to replace an old mercury thermostat. It worked fine for the heating season. I turned it to Cool for the first time today and my AC and furnace blower will not turn off. Keeps cooling even though I have it set at 80 degrees and the temperature reads 76.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #2

    Jun 10, 2011, 08:06 PM
    Get out your install instructions,, go over it a few times if needed,, sounds like something not wired right
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #3

    Jun 10, 2011, 08:07 PM
    Comment on wmproop's post
    Or not programmed right
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

W o g are c why wires thermostat = rth2300 [ 3 Answers ]

My old thermostat has the wogrcy and when I connect the new model rth300, the ac doen't run

I just installed Honeywell RTH2300 thermostat and it is not functioning. Help! [ 0 Answers ]

I have an all electric unit with a hot water traditional tank. The wires coming from the wall connected to the old thermostat as follows: Red to R Blue to C Yellow to YY2 Green to G White to W The Honeywell customer care rep told me not to use the blue wire. He instructed me to connect...

Going from old mercury thermostat to rth2300 get only cold air [ 0 Answers ]

I have four wires colored Black, Green, Red and White. The old mercury thermostat had labels "W" "R" "Y" and "G"... I didn't notice which came from what. On the RTH2300 I connect white to W, red to R (which has a jumper to RC), green to G, and black to Y. I only get cold air. When I connect...

Installed RTH2300 and its not working correctly [ 0 Answers ]

I just bought a Honeywell RTH2300 to replace an older thermostat in my house. I have an oil furnace and two zones. One zone is working correctly, but the other is not. The zone that IS NOT working correctly has a White (W), Red (R), and Blue (C) wire coming out of the wall. I have the White wire...

How to Replace Old Carrier Thermostat (mercury filled) [ 2 Answers ]

I am wanting to replace my old theromstat with a programmable theromstat. However, I have run into a slight issue. The old thermostat only has two wires coming out of the wall and three wires ( yellow, red, white) tied to the mercury. The one white wire is going back into a radial button that...

View more questions Search