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: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

The override on the Carrier Debonair 450 thermostat has stopped

Customer Question

The override on the Carrier Debonair 450 thermostat has stopped working. How to reset or reprogram?
Submitted: 5 years ago.
Category: HVAC
Expert:  Douglas replied 5 years ago.
Hi, I'm Douglas and I am here to help you resolve problems with your heating and cooling equipment.

Is this your thermostat?

Expert:  Douglas replied 5 years ago.
You can reset the override itself or you can reset the thermostat to the original factory settings. I have the 420 manual here which is virually the same.

The resetting of the override timer on page 11.2
To reset the whole thermostat to factory settings, this is found on page 18.2.

Do you need the manual I am refencing?

Attachment: 2012-04-11_193929_carrier+debonair+420+instructions.pdf

Customer: replied 5 years ago.
Using the factory reset solved the problem. Thanks.
Customer: replied 5 years ago.
How do I release the $30 to you?