Fix a Broken Furnace With Arduino

Intro: Fix a Broken Furnace With Arduino

The control board in my furnace will not turn it on unless I manually turn the blower on. But when I do that the blower stays on until I manually shut it off.. So I built this to turn the blower on and off and also to override the thermostat.

I built this a while back out of necessity. I have not intended to make it an instructable so I did not do a step by step build. If you have any questions, please feel free to let me know, this is my first instructable.

Step 1: Collect Your Parts

Step 2:

Just shut off your thermostat and hook this up and you are good to go.

If you have any questions of comments let me know

Step 3: Upload Your Code

Share

    Recommendations

    • Tiny Home Contest

      Tiny Home Contest
    • Fix It! Contest

      Fix It! Contest
    • Audio Contest 2018

      Audio Contest 2018

    3 Discussions

    0
    None
    JohnB78

    10 months ago

    well after 2 years of running the ac and heat we finally had to call the furnace guy. but it ended up only costing $125.00 to fix it, so everything is on the up and up.

    0
    None
    JohnB78DIY Hacks and How Tos

    Reply 2 years ago

    in my area its about $100.00 just to have it looked at. I didnt have to buy anything I already had everything I needed, i just put a parts list as an example.