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Electrical Wire and Cable

I put in a new thermostat the old one was removed without labeling the wires

Making the wiring connections for a thermostat when the old thermostat was removed without labeling the wires

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Electrical Question from Diane
[ad#block]Electrical Question: I put in a new thermostat. The old one was removed without labeling the wires. A furnace and air conditioner are both run on it. Thermostat wires consist of blue, white, red and green. Furnace wires are White in white, blue in yellow, green in green Red in Red. Air conditioner consist of two wires. Red wire is with blue wire from furnace in yellow spot. White wire is in a “c” spot. There is a RC spot on thermostat that has a jumper wire to the red spot. Any suggestions. On the thermostat I have the blue wire in the blue spot and the white with white spot and green with green and red with red. The air only works when in the heat mode of the thermostat. If you need pictures I can try to get them tomorrow.

This electrical question came from: Diane, from Goodells, Michigan
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Dave The Electrician’s Reply:
Thanks for your electrical question Diane

Wiring a Thermostat

Making the wiring connections for a Thermostat

More about Wiring a Thermostat

How to Wire a Thermostat

Wiring Instructions for a Honeywell Thermostat: I bought a Honeywell Heating thermostat. There were no directions about how to wire it.

Installing Programmable Thermostats

How to Install a Programmable Thermostat for Room Heating Unit

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Complete Guide to Home Electrical Wiring

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Handyman, Handy Women, and Electricians
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
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Be Careful and Be Safe - Never Work on Energized Circuits!
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