Learn how to be your own tech line…

Click here to check out our structured, online appliance repair training courses for rookies and experienced techs.

FAQs | Repair Videos | Academy | Newsletter | Podcast | Contact

Stay connected with us...

Samurai on Facebook - become a fan today! Sign up for our free newsletter and keep up with all things Appliantology. Subscribe to our YouTube channel for lots of appliance repair tips and help! Follow the Samurai on Twitter and get timely morsels of Appliantological Wisdom! Subscribe to our MST Radio podcast to learn secrets of the trade.
  • Announcements

    • Samurai Appliance Repair Man

      [Webinar] Basic Refrigeration Sealed System Thermodynamics   09/21/2017

      See this calendar event for details:                   
    • Samurai Appliance Repair Man

      Webinar Recordings Index Page   09/21/2017

      One of the benefits of your Professional Appliantologist membership is that you can attend the regular, live training webinars and you have access to the recordings as well. So if you can't make it to the live webinar, catch the recording at your convenience. The webinar recordings are conveniently listed for you on the Webinar Recordings Index Page.   

Archived

This topic is now archived and is closed to further replies.

shawnharper

Furnace not sending enough power to thermostat

Recommended Posts

shawnharper   
shawnharper

I have a brand new furnace, installed in February.

In conjunction, I'm using a thermostat from HAI (home automation) that has a blue backlight.  Apparently, this thermostat needs more power than most, and newer high efficiency furnaces don't supply enough.  So, my automation dealer gave me a little module that hooks up to the furnace's white, yellow, and black leads (that go to the thermostat) which is meant to boost the power (something about pull-up resistors?).

When I hook it up, the thermostat now powers up, but the furnace runs continually (setting it to off, setting fan to off, etc, does nothing).

Anyone have experience with this?

 

Thanks,

Shawn

 

Share this post


Link to post
Share on other sites

Need appliance parts? Call 877-803-7957 now!

Guest ahammer48   
Guest ahammer48

Hello

Well this is a new one. Do U know what the power requirements of this new thermostat are? 24 VAC, 115 VAC.

That info would be helpful. Unfortunatly I've never heard of this brand HAI. Most of the digital stats I've seen still use 24VAC to operate.

Please post the new stats power requirements.

Share this post


Link to post
Share on other sites