Homewell Thermostat and C wire at Furnace
#1
05-28-18, 08:44 AM
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Homewell Thermostat and C wire at Furnace
Good Morning,
Thanks for reading and appreciate your help.
I am planning to install Honeywell WIFI thermostat but i dont have C wire at the thermostat but surprise that i see a C wire at the furnace( I will attach some pictures ). I tried to look at the thermostat to see if i can find a C wire but could not ( is it worth opening big hole in drywall to locate C wire?? ). I am confused on how to change wiring with C wire at furnace and no C wire at thermostat.
Thanks again and really appreciate
Thanks for reading and appreciate your help.
I am planning to install Honeywell WIFI thermostat but i dont have C wire at the thermostat but surprise that i see a C wire at the furnace( I will attach some pictures ). I tried to look at the thermostat to see if i can find a C wire but could not ( is it worth opening big hole in drywall to locate C wire?? ). I am confused on how to change wiring with C wire at furnace and no C wire at thermostat.
Thanks again and really appreciate
Last edited by PJmax; 05-28-18 at 10:38 AM. Reason: added labeled picture
#2
05-28-18, 10:29 AM
Forum Topic Moderator
It kinda looks like you have an available wire but it is tough to see because your brown condenser wire is in the way.
If you move it out of the way and take another picture we may be able to see it.
If you move it out of the way and take another picture we may be able to see it.
#3
05-28-18, 10:40 AM
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Unfortunately....... looks like only a four wire cable.
I labeled your picture.
The A/C condenser has it's white wire connected to C and it's red wire to Y.
I labeled your picture.
The A/C condenser has it's white wire connected to C and it's red wire to Y.
#4
05-28-18, 03:30 PM
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Thanks Houstan and Pete,
Can i install Honeywell RTH8580WF with these wiring using the recommendations from honeywell?
Does it mean i dont need to do any wiring changes.
Regards,
Can i install Honeywell RTH8580WF with these wiring using the recommendations from honeywell?
Does it mean i dont need to do any wiring changes.
Regards,
#5
05-28-18, 05:09 PM
Forum Topic Moderator
I would take another look in the furnace for that 5th with that I believe may be there.
I posted that the stat wire is covered and to please move the condenser wire out of the way.
I posted that the stat wire is covered and to please move the condenser wire out of the way.
#7
05-31-18, 08:48 PM
Group Moderator
What we want you to do is to look closely at the cable that I labeled as thermostat. Check where the brown jacket ends. Many times a spare wire is cut off even with the jacket. This would be the same at the stat end too.
