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I have carrier c48175d. changed thermostat to honeywell.

Customer Question
I have carrier c48175d...

I have carrier c48175d. changed thermostat to honeywell. carrier shows green to A yellow to B white to C and red to D.

Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?

New thermostat shows only Letters...not sure where the green would go ? used to be on A but there is not A in honeywell thermostat. dint work so I put the old one back on the wall and now I don't get any readings on screen at all. (?)

Contractor's Assistant: Do you plan on doing the work yourself?

Yes

Submitted: 9 months ago.Category: HVAC
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Answered in 3 minutes by:
10/11/2017
HVAC Technician: Gaztech, HVAC Technician replied 9 months ago
Gaztech
Gaztech, HVAC Technician
Category: HVAC
Satisfied Customers: 921
Experience: Owner at Gaztech
Verified

Hi I am Gaztech1, a independent technician, I will assist you with your issue.

Don't forget to rate the 5 star rating AT THE TOP OF PAGE after we are done. this will credit me for assisting you.

The Honeywell was not compatible with your system and now theres a good chance you have burnt a fuse or a control in the furnace

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Customer reply replied 9 months ago
In replacing the fuse, do I just unplug the furnace and take the door off, go to board and replace fuse ?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 9 months ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,117
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

My name is Billy. Do you still need assistance?

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