Ask Experts Questions for FREE Help !
Ask
    Scott.Bridgeman's Avatar
    Scott.Bridgeman Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jan 1, 2010, 04:08 PM
    Noma thermostat THM301
    I am trying to install the Noma thermostat thm301M. The manual has 4 wires, R,G,W,Y. In my wall I have the R,G,Blue and Black wires. How do I know which is which? Can you help?
    Scott.Bridgeman's Avatar
    Scott.Bridgeman Posts: 2, Reputation: 1
    New Member
    		  
    #2

    Jan 1, 2010, 04:12 PM

    I am trying to install the Noma thermostat thm301M. The manual has 4 wires, R,G,W,Y. In my wall I have the R,G,Blue and Black wires. How do I know which is which? Can you help?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #3

    Jan 1, 2010, 05:24 PM
    You will not know unless

    You marked and identified each wire you removed from the old thermostat just like it told you to in the directions for the new thermostat.

    OR

    You track down where the wires exactly go on the indoor unit then transpose the colors available to the letters available.

    The problem is you have NON standard wiring colors which means you have NON standard wires attached to standard terminal designations. Find out exactly where the color wires are attached to what letter on the terminal strip in the indoor unit and post back.
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!

Noma Thermostat [ 1 Answers ]

How do you set a digital noma thermostat - we're renting the house - don't have manual and are freezing. Thanks.

Noma thermostat [ 1 Answers ]

We have a Noma 7 day programmable thermostat for about two years and I have lost the instructions of how to program it. Is there some way of getting a new set of instructions? It was purchased from Canadian Tire, I don't see a model number or anything on it, all I can say is that it is for...

Noma Thermostat [ 2 Answers ]

I bought a programmable thermostat I misplaced my manual. The fan does not want to turn off and when the heat comes on I have a display that shows a sign of fire and one that shows a music note what does it mean

View more questions Search