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Results for c wire
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user 33
0
votes
Just another C wire problem
Then at the air handler connect them as follows:
Red to Rc
Yellow to Y
Green to G
Blue to C
If there's already a wire attached to the C terminal, don't worry. … Just attach the blue wire from your thermostat cable there as well. The other wire is likely from the condensing unit outside. …
- 132k
2
votes
Accepted
Is it possible to add a "C" wire to my electric heater?
Click for larger view
It appears as though the "C" wire is bonded to the chassis, so you should be able to connect the C wire from the thermostat to the chassis as well. … The blue wire from the A/C cable is attached to another blue wire, that blue wire ties in with all the other "C" wires. …
- 132k
2
votes
Trying to figure out 'C' wire
In this photo, you'll notice the cable with a red and white wire. That cable should go between the furnace and the A/C unit. … The white wire from the cable is connected to Y, while the red wire is connected to C.
The other cable I've labeled should go to the thermostat. …
- 132k
0
votes
Accepted
WiFi Thermostat - C Wire
Yes, the terminal labeled C on the transformer is where you want to connect the C wire to the thermostat. … It might also be a good idea to put an appropriately sized fuse in line with the R wire. …
- 132k
0
votes
Accepted
Which wire is the C wire?
The wire labeled BL in both images, should be the C wire. W and BR activate the heat relay. G activates the blower time delay relay. PK takes 24v to the thermostat. … If you're looking for the C wire, because you want to install a fancy new WiFi thermostat. Make sure the transformer can support the additional load, before you connect the thermostat. …
- 132k
1
vote
Accepted
How to add "C" wire using a/c fan wire?
Disconnect the green wire in the second photo from the G terminal, and connect it along with the white wire to the C terminal. … And depending on the thermostat, the C wire may have to come from the same transformer as R. Using C from the Rc transformer may not work. …
- 132k
2
votes
Accepted
Where to attach the "C" wire to my furnace?
You should see a cable that leads to the A/C compressor,which contains 2 wires. One will be connected to the Y wire from the thermostat, the other is connected to the C wire. …
- 132k
2
votes
What if the furnace doesn't have a C wire connection
Based on the schematic, the B terminal should be able to be used as a C. Simply extend a wire from B, and connect the C terminal of the thermostat to it. It should look something like this... … Though since you said you don't have A/C hooked up, you won't have the Y wire connected. …
- 132k
2
votes
Accepted
WIFI thermostat no C wire
Get rid of the external transformer, and pull a proper C wire. … I've highlighted the R wire in red, and the C wire in blue. …
- 132k
0
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Accepted
Multiple C wires?
You should be fine connecting the unused blue wire to the C terminal in the furnace/air handler. … in furnace -> white wire -> contactor coil -> red wire -> C terminal in furnace -> L2 of transformer secondary. …
- 132k
1
vote
Accepted
Help me to find C wire
Connect one of the wires to the wire labeled R in the boiler (as highlighted above).
Connect the other wire to the wire labeled C in the boiler (as highlighted above). … Connect the wire that is connected to the C wire in the boiler, to the C terminal on the thermostat base.
Connect the other thermostat wires as they were on the old thermostat. …
- 132k
1
vote
C Wire for Thermostat
If you connect the C terminal on the thermostat, to that C terminal on the furnace control board. That should power your new thermostat. …
- 132k
0
votes
Accepted
C wire - Where does it go?
But according to the schematic, the blue wire heading off to the left of the first photo is the C wire. …
- 132k
1
vote
Accepted
How to add a C wire to an old Lennox system
On the left side of the photo there's a yellow and a red wire connected together. That should be where you want to connect the C wire.
you can confirm this by tracing the wires. … There's another blue twist-on wire connector where two red wires connect. One of the red wires is grouped with the white wire (in the same cable), those go to the A/C. …
- 132k
1
vote
Add C wire for Thermostat to Goodman furnace
If you're supplying an A/C unit contactor, the furnace circuit board, and an exhaust fan from this transformer. You may find that it doesn't have the power to also supply a thermostat. …
- 132k