No further details provided
G= green wire, (fan) : Y=yellow wire, (cooling) : W=white wire, (heat) : R=red wire, (24 volts)
The C is for 24 volt common wire. You will not need to use the C terminal unless the new thermostat requires 24 volts to operate. Hook up the GYWR and you should be ok. Let me know if that dosen't work and I will advise you how to hook up the common wire.
Hi thank you for the help I do need help with the common wire I can not finish the set up without it I read on how to jump certain wires however at the furnace I don't have gywr I have 1-5 and not just how to jump wires
You haven't given any information on the furnace, however, your thermostat control wires should be, Red, Green, White and yellow. Are they hooked to terminals 1,2,3 and 4 on the furnace. If so 5 should be common. You will need to see if there is an extra wire in the thermostat cable. If so you can hook it to C on the thermostat and 5 on the terminal strip on the furnance.To be sure, you can check, (if you have a volt meter) for 25 volts ac between 1 and 5. If you don't have a volt meter you will need to look at the transformer for the 2 wires that comes to the terminal strip to see where the 24 volts connections are.
I will keep a close watch on here so I can answer you quicker. Let me know what you find.
One thing I forgot, be careful in jumping out control wire. If you happen to jump from R,G,Y,or W to C you will short out the transformer and probably the thermostat also.