4 wire or 5 wire thermostat wiring problem question. The model number of the honeywell thermostat was not provided however here are the typical wiring assignments for a conventional heating system.
Looking For A Digital Thermostat For An Old 4 Wire Carrier
Wiring a honeywell thermostat with 4 wires. To install your unit youll need to connect the correct wires to the terminals on the back of your new thermostat. Learn more about resideos response to covid 19. Use our helpful tool to take an assessment of the existing wiring in your home. The main trouble is dealing with those different colored wires knowing which one does what and if that wasnt enough you also have numbers and letters to deal with. Its there so you can supply power to the heating and cooling switches with a single wire which is usually red. There are only four wires going into the existing thermostat red green blue white.
Some have the common c wire while others do not. Honeywell thermostat wiring diagram 4 wire examples the table above provides a more complete list of honeywell thermostat wiring colors and their uses. Typical 4 wire thermostat t stat wiring examples follow. Install the honeywell wi fi smart thermostat with this video. How to wire a honeywell thermostat with 4 wires. Understanding thermostat wiring colors is the next step.
Even the most seasoned people who enjoy diy may come across problems with wiring a thermostat. Skip navigation sign in. The wiring for your honeywell thermostat depends on the functions of your heating and cooling system. Find out if your home is compatible with a honeywell home thermostat. Both examples of how to wire a honeywell thermostat with 4 wires are discussed below. How to replace a 4 wire thermostat.
Youll probably see a thermostat jumper wire connecting the rc and rh terminals. Nest wiring diagram 4 wires duration. My paperback and e book. We have a 19 year old condo with an old carrier mercury thermostat. We have both a natural gas furnace and an ac unit. The yellow wire connects to your.
But here is a list of the most common wire color mappings as seen in many four wire t stat setups. Use our helpful tool to take an assessment of the existing wiring in your home. Here is the industry standard thermostat wire color code used for most systems. The white wire connects to your heat. Heck now im not calling anyone a dummy. Keep in mind that there should be a low voltage cable in the wall where the thermostat is located which has individual wires as shown in the instructions below.
Gallery of Wiring A Honeywell Thermostat With 4 Wires
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