Honeywell Thermostat Wiring Instructions | Diy House Help

If in the market for a new Honeywell thermostat, make sure you understand your Honeywell thermostat wiring needs before upgrading.

Q: I installed my new programmable thermostat, but it wont turn on.

A: If you plan to upgrade to a new thermostat make sure you have the proper number of wires available, otherwise your new thermostat wont work. If you do need additional wires, you will want to consider how difficult installing new wires will be for your application.

Modern electronic thermostats are no different from any other technology, in that they can do more, but can also seem complicated to install and understand. One comfort to know is the basic wiring hasnt changed much, withexception of an additional wire to get some programmable digital thermostats operating.

Note:For specific thermostat model installation manuals and wiring instructions, refer to our Thermostat Buying Guidefor a complete list and link of manufacturers. Individual thermostat model information is most likely the best place to find particular manuals, and not a generalmanualscategory that can be found within the search function.

SEE ALSO : In-Depth Thermostat Wiring Explained

Note: A previous installer may have used a different set of color wires. This will be a non issue to keep track of if a whole new set of thermostat wires is pulled. Otherwise tag the wires before removing from the existing thermostat, or take note of the terminals each wire is attached to.

Some programmable thermostats (e.g. Honeywell Prestige wiring requirements) need aminimum of5 wires, and maybe more depending on what features you want to operate (humidifier, etc). The additional 5th wire will be for common (neutral), which acts the same as it does on an electrical light switch to complete a path and provide power for thedisplay, closing switching relays, etc.

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Honeywell Thermostat Wiring Instructions | Diy House Help