Installing Digital Thermostat to 4 Wire system

Discussion in 'RV Tips & Tricks' started by MrDave, Sep 11, 2015.

  1. MrDave

    MrDave Junior Member

    Good Day to you all.
    First of all thank you for looking at my post.
    After much research I fell like I need to start a new post to get some advice.

    I have a 2015 Reflection by Grand Design 5th. Wheeler that has a basic Atwood Thermostat, and I would like to install a new Honeywell WIFI Digital thermostat in it's place.

    There are just 4 wires coming out of the Thermostat right now. (Black red White & Yellow)

    Can someone please let me know what I need to do for basic installation, and so I can still control the fan for the AC?

    Thank you very much.

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