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

    Oct 14, 2008, 05:57 PM
    Honeywell RTH4300B
    What two terminals on the thermostat do I connect the two wires in the wall to?

    The unit has five wires and we only have two coming out of the wall. Our house was built in the 1930's and I assume rewired since then.

    Thanks
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #2

    Oct 14, 2008, 06:20 PM

    The r and the w probably,, what do you have ? A furnace only no a/c
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!

Replacing a Honeywell T8575D2003 with a Honeywell RTH8500. Having trouble with wires [ 1 Answers ]

I'm replacing a Honeywell T8575D2003 with a Honeywell RTH8500. Didn't think there would be issues, manuals are all straight forward. However when I removed the T8575, the wiring set up did not match what the RTH8500 was expecting. The T8575 has 8 wires connected as follows < 1 ...

Install Honeywell RTH230B, Removing Honeywell Q674L [ 2 Answers ]

I am removing a old (1987) Honeywell Mercury THermostat Q472L Base that has W, R, Y, G, B, O. The RTH230B has Rc (which I assume to be B), Rh (which I assume to be R), Y (to Y), W(to W), G (to G). I have no idea what to do with the O (which I read could be the Changeover. Do I just tape it up...

HONEYWELL RTH4300B but only an are and a C wire [ 1 Answers ]

The back of the thermostat has W,Y,G,O,Rc,R,B not used, slots on the back. My old thermostat only has two wires labelled R and another labelled C. There is no wiring instructions for two wires, I have a furnace that heats water. Can you advise on where these wires go? Thanks

Installing Honeywell RTH6300B from an older 7 wire Honeywell. PROBLEMS [ 4 Answers ]

Hello everyone, I am new here. I found this site which trying to troubleshoot my problem. Any assistance would be GREATLY appreciated. Basically I have an older honeywell programmable thermostat with 7 wires attached. They are as follows... C - Black wire L - Blue wire R- Red wire W2 - brown...

Replacing Honeywell T8411R with Honeywell RTH7500 - wiring problems [ 1 Answers ]

I need help getting my new, programmable thermostat to work. I currently have a dual-stage Heat Pump and A/C unit that works fine. The current thermostat is the Honeywell T8411R. I don't know the number for the subbase, but it's the one that came with the thermostat. The current (operational)...

View more questions Search