Jump to content
Click here to check out this guide

FAQs | Repair Videos | Academy | Newsletter | Contact


DISCLOSURE: We may earn a commission when you use one of our coupons/links to make a purchase.
  • Upcoming Events

    • 30 March 2024 02:00 PM Until 03:00 PM
      0  
      All Appliantology tech members are invited to join in this workshop on all things Appliantological: bidness, customers, tools, troubleshooting, flavorite brewski, whatever. Webcams and microphones are open and live!
      This workshop is also a great time for any students at Master Samurai Tech to bring any and all questions about the coursework. We're happy to walk through any concepts you're having trouble with. Think of it like office hours with your teachers. 
      If you have a specific appliance problem you'd like us to talk about, post it here! We need a problem statement and a PDF of the tech sheet or schematic so we can all see it on screen share. If you have a PDF that isn't already in the File library here at Appliantology, send it to us by attaching it to the contact form. 
      Also, follow this Calendar Event so you'll get notified of new posts here. Look for the "Follow" button either at the top of the topic on desktop or below the topic on mobile.
      Who: This workshop is only available to tech members at Appliantology.
      When: Saturday, March 30 @10:00 AM Eastern Time.
      Where: Online via Zoom
      How:
      Click here to go to the forum topic with the registration link. If you're interested, register now. Arrive a couple minutes early to make sure your connection is working. Set a reminder for yourself for this workshop so you don’t miss it.  And check out past workshops here: https://appliantology.org/announcement/33-webinar-recordings-index-page/

Thermastat went blank, Honeywell t8411R 1028


KennethJ.Ledet

Recommended Posts

KennethJ.Ledet

My honeywell thermostat was working yesterday then went blank today and the airconditioner has shut off.

So far I have tried,

1. Checking the fuse and it's fine. Nothing wrong with it.

2. Checking the wiring in the thermastat, everything is still conected.

3. Water pan under the air conditioner is empty.

4. Tried to jump the G, R, and Y wires and nothing.

Any other suggestions or thoughts?

The airconditioning unit is made by Carrier although I am not sure what model.

Link to comment
Share on other sites

  • Replies 4
  • Created
  • Last Reply

Top Posters In This Topic

  • jb8103

    2

  • KennethJ.Ledet

    2

  • RegUS_PatOff

    1

Top Posters In This Topic

Don't know what your setup is (heat pump? split system? Package unit?) but somewhere there is a transformer that is supposed to be sending 24VAC to your thermostat. In your case, sounds like it ain't. Can you test R to Y at the thermostat for voltage? Can you find that transformer? Most important, find that data plate with model number.

Link to comment
Share on other sites

KennethJ.Ledet

Thaks for the reply, the transformer was defiately blown. The problem turned out to be the coolent circulation valve (I think that is what it was called) on the outside unit. It melted and something was exposed causing the transformer to blow out. We have home owners insurance and it covered the repairs, thank God! The repair man came out and blew 7 transformers trying to figure out the problem. He said the repair would have been in the $800+ range if we didn't have insurance! Only cost us $60 bucks! So yea, the $500 a year was definately worth it. Score!

Link to comment
Share on other sites

... The repair man came out and blew 7 transformers trying to figure out the problem.

... the $500 a year was definately worth it.

1) I'm not sure he knows what he's doing / how to test.

2) $500 a year insurance ? :pirate:

Link to comment
Share on other sites

I wouldn't want to tell my boss he just ate 7 transformers.

Anyway, sounds like Ken's got a heat pump with maybe a shorted solenoid on the reversing valve. How that would take out the transformer before the fuse beats me, though.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...