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