However, GLAS smart thermostat has been discontinued by Johnson Controls. But if you already have the thermostat and are having issues with it, or you are looking for assistance setting it up, hopefully, you will find the following guide useful.

How Do You Install a Johnson Control Thermostat?

Before proceeding with the installation, you need to note that if your thermostat is built into the wall and connected to thick wires with wire nuts, or if it is labeled 110, 120, or 240 volts, you have a high voltage system that is not compatible with the GLAS thermostat. Do not connect your thermostat to these high voltage wires. GLAS is only compatible with 24VAC systems. Follow the instructions below to install your Johnson Control GLAS thermostat: Check this too: Mysa Smart Thermostat How-to & Troubleshooting Guide

How to Connect Johnson Controls GLAS Thermostat to Wi-Fi

Connection to Wi-Fi allows you to get the most out of your GLAS thermostat. A Wi-Fi connection tracks the outdoor weather in your location to help you choose the most efficient temperature settings. Outdoor weather tracking also allows the thermostat to calculate your energy savings to improve your energy usage. Also, you can access your thermostat remotely from your mobile device or the web when using Wi-Fi. Connection to Wi-Fi is part of the setup process you will walk through during installation. If you want to make any updates to your Wi-Fi connection, navigate to Settings> General> Wi-Fi. Use the list provided to select the new network you wish to connect to and input the password. If you do not see the network you would like to use shown on the list, scroll to the bottom of the screen and select “Other”. Type in the name and password of the network you wish to connect to. The new network will be added to the network list.

Johnson Controls GLAS Thermostat Won’t Turn On

There are several issues that could prevent the thermostat from turning on. If the thermostat display is dark, a lack of power may be the culprit. Try replacing the batteries, then check for a blown fuse or tripped breaker in the electrical panel.  If the problem is not resolved, make sure the breaker is shut off and remove the cover. If it looks dirty inside, clean away the accumulated grime that may be affecting its functionality using canned air or a soft artist brush. Then look for issues like loose wiring or terminal screws and tighten them up. If the device is unresponsive, reboot the thermostat by removing the cover and holding the green power button on the bottom left of the thermostat for 30 seconds, until the GLAS logo is displayed. This action will not delete any of your settings or data.

Johnson Controls Touch Screen Not Working

To register your presence, GLAS uses a proximity sensor to detect your movements or by tapping on the screen. If the screen does not seem to work or it is not illuminating, try holding your hand steadily in front of the device’s base. If the device is unresponsive, reboot the thermostat by removing the cover and holding the green power button on the bottom left of the thermostat for 30 seconds, until the GLAS logo is displayed. This action will not delete any of your settings or data.

How to Connect GLAS Thermostat to Alexa

To connect your GLAS thermostat to Alexa, you will need to use either the Alexa mobile app on your smartphone or tablet or visit echo.amazon.com on your web browser. From your home Wi-Fi, use your GLAS username and password and follow the steps below: To connect your thermostat using guided discovery, in the Alexa app: To connect using smart home skills, in the Alexa app: Note that voice assistants use the same name you gave your GLAS during setup and installation. This helps your voice assistant distinguish control of different GLAS devices in your home. GLAS will accept commands through Alexa that begin with the wake word “Alexa” and one of the following commands:

Increase thermostat by X degreesDecrease thermostat by X degreesSet the thermostat to X degreesSet thermostat to <heat, cool, auto, off>What’s thermostat temperature

How Do I Reset My GLAS Thermostat

If you are having issues with your Johnson Controls GLAS thermostat, re-booting the device by navigating to Settings> General > Restart may resolve the problem.  Restarting will not erase any of your stored data. If the device is unresponsive, you can reboot the thermostat by removing the cover and holding the green power button on the bottom left of the device for 30 seconds, until you see the GLAS logo. This action will not delete any of your settings or data. You may also do a factory reset by choosing the “factory reset” option from the same Settings Menu. However, a factory reset will delete all stored data on the device, including temperature preferences, schedules, connection to your devices, and any other personal data. After doing a factory reset, check the updates and install the latest security and functionality features to make sure that your reset thermostat is up-to-date.

How Do You Lock a GLAS Thermostat?

Besides bringing various bug fixes, GLAS update 1.0.1.139 brought new features which include Passcode. This lets you enable a passcode to lock your thermostat from unapproved changes to your temperature, settings, setpoints, or schedule. To set a passcode, go to Settings> General> Passcode

How Do I Change the Date and Time on My Johnson Controls GLAS Smart Thermostat?

GLAS automatically manages the date and time on your device when connected to Wi-Fi and internet-based time service is available. However, you can also adjust the date and time manually in the case your thermostat is not connected to the internet or is unable to reach an internet-based time service. To manually adjust the date and time, go to Settings> General> Date & Time. You can always adjust the time zone of your device from the same menu.

How Do You Remove a GLAS Thermostat Cover?

To remove your Johnson Controls GLAS thermostat’s frontplate, pull the top of the silver cover towards you.

How to Connect a Johnson Controls GLAS Thermostat to a Remote Sensor

Johnson GLAS thermostat has one auxiliary output (AUX terminal) that can be configured for one auxiliary device. The following is a list of supported types of equipment:

HumidifiersDehumidifiersVentilators

You can also configure the auxiliary output in “On while occupied” mode, which will turn the auxiliary output on anytime the device is in “Home” or “Sleep” modes, and off when it is in the Away state.

Furnace-powered auxiliary device

An integrated auxiliary system is built into a furnace or air handler that shares the same power supply as the rest of the system and only requires a single control wire.

2-wire auxiliary device without C terminal

An auxiliary device that has two terminals with the same label (HUM, DEHUM, or AUX) and no C terminal requires a relay pack for operation.

2-wire auxiliary device with C terminal

An auxiliary device with one C terminal that does not require a relay pack for operation.

Connect GLAS Thermostat to Apple Homekit

Check this too: Nest Thermostat How to & Troubleshooting Guide

Was the Johnson Controls Thermostat Model Discontinued?

Johnson Controls discontinued the GLAS Smart Thermostat. First, the GLAS smart thermostat model number SIO2-00000 was discontinued in 2019 and then followed by the replacement model SIO2-10000 was also discontinued in 2020.

Where is the MAC address in My Johnson GLAS Thermostat?

You can find the Wi-Fi MAC address at the back of your device where it is printed. Alternatively, you can get the MAC address from a running device by navigating to Settings> Support> Device info.