How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Phil Your Own Question
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

My AC stopped working tonight. I have a Honeywell T8400C

Customer Question

My AC stopped working tonight. I have a Honeywell T8400C 1099 with no display.
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: First time
JA: Do you plan on doing the work yourself?
Customer: Yes
JA: Anything else we should know to help you best?
Customer: I've never done this before, but I'm mechanically inclined.
Submitted: 29 days ago.
Category: HVAC
Expert:  Webb-Guy replied 29 days ago.

Have you tried checking the batteries to see if they need replaced? Also try checking the breaker to see if that is the problem.

Expert:  Webb-Guy replied 29 days ago.

Are you still needing help with this?

Related HVAC Questions