Was this article helpful? Remove the wall plate from the wall. It’s close to the left edge, as pointed at by the pink arrow in the previous picture. A thermostat is a temperature regulatory device that … Product Reviews, Experiences, and Technical Insights from Thomas J. Hesley. Without a c wire, your thermostat will not power up, In the box you will find: Thermostat, Wall plate (attached to thermostat), Screws and anchors, Quick Start Guide, Thermostat ID Card, Wire labels, User Guide, Quick Reference Card, Works with Alexa, Google Assistant, Samsung SmartThings, IFTTT, Yonomi, Wink, and Stringify (devices sold separately). 1 and remove the old thermostat 4 Complete 5 installation Prepare Receiver Box 2 for installation Install the 3 Receiver Box min 0.25mm2 max 1.5mm2 To ensure your safety, always make sure mains power is switched OFF before accessing wiring. Call 1-800-468-1502 for wiring assistance before returning the thermostat … If you fail to unregister, your buyer will have to jump some hoops to register it in their account. Thermal overload protection for added safety &, peace of mind. Now the hallway has both a honeywell round thermostat and an old, useless … In case of removing the old thermostat be aware that the existing wiring will no longer be used. This programmable thermostat is not only energy-efficient, but it is also extremely cost-effective and attractive, blending in seamlessly with the rest of your home. If it’s not, the mercury switch inside won’t work properly, which can affect the accuracy of the temperature readings. Or, you wish to sell it to someone else at a different location. Usually there’s an on/off switch on the unit. The T5 smart thermostat allows you to take comfort knowing your home temperature will always be just how you like it. Keep in mind that unregistering the t-stat does not reset it to factory default values. The final choice is yours. Note-c wire is required and is the primary power source for your thermostat. Remove the subbase from the timer by depressing the securing clip A and pulling the two halves apart. All your local settings changes, like schedules, and preferences, remain. Do this at the  My Total Connect Comfort (TCC)  web site, to save time for the next person to own it. If none of the above works, don’t lose hope. Deep, Custom display, with on screen comfort information, Total Connect Comfort app available, remotely monitor/manage your homes comfort and energy use, Great for heating and cooling systems including single and multi-stage heat pumps, Universal compatibility for all system types except electric baseboard heat, Exclusive Lux speed slide for easy programming, Separate weekday and weekend programs with 2 or 4 periods per day, dependable – cools rooms 550-700 sq. Swing open the cover If your Honeywell thermostat has a swinging cover, there will be an edge that sticks up around the side of the thermostat. In our case, we only have one address; the  My Apartment  locale. sounds like an old Honeywell thermostat. Honeywell’s focuspro 5000 digital thermostat offers the perfect blend of features, performance, energy savings and value. Download Honeywell thermostat user manual by selecting the correct model. One issue is I don't know how to open the front cover to get access to the thermostat wires. 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