[PDF] Honeywell T4 T4M T4R Thermostats User Guide

How does the Honeywell programmable thermostat work?

On the home screen interface, you can view details such as the date and time along with the indoor and outdoor temperature and humidity illustrations. The Honeywell programmable thermostat allows you to set a schedule of heating or cooling.

What should I do if my Honeywell thermostat won't work?

Be sure to place the batteries in the correct orientation. The battery-powered control unit of Honeywell thermostat systems is integral for the operation of the entire system. Without a functioning control unit, the system will not work. This means that replacing the batteries when necessary is vital to keep the system operational.

What is a non-programmable thermostat?

A non-programmable thermostat is the most basic type of heating and cooling control system available. Inexpensive but useful, these manual thermostats lack the automated functions of more advanced thermostat models, but they can be installed to work with nearly any heating and cooling system for versatile use.

Do Honeywell thermostats need batteries?

Honeywell produces many thermostat systems, many of which require batteries for the control panel to operate. The batteries on all Honeywell thermostat models are within the control panel of the system. The batteries are either held behind a sliding tray compartment or within the main body of the control panel itself .