When does your Honeywell thermostat show up as offline? Most of the users are unaware of this offline error message and so they don't know the way to restore its connection. This blog details over why Honeywell thermostat show up as offline and how to deal with that issue?
A strike-through Wi-Fi icon on the top of right corner of thermostat display indicates that your Honeywell thermostat is offline. This offline indication showing up on the Honeywell thermostat screen or on the Lyric/Total Connect Comfort App means that the connection to the Wi-Fi network is lost or missing.
As the network restores, the Honeywell thermostat will automatically reconnect.
Sometimes the Honeywell thermostat might appear offline due to the outage. As the server outage is resolved, Honeywell thermostats will return from offline to online status. We suggest you remove the Honeywell thermostat from the wall for 30 seconds and check whether this resolves the offline message.
The server outage highlights one of the persistent problems with the concept of "internet of things". The usability of products is often dependent on the reliability of internet services. Whenever they go out of control and get crashed, devices like thermostat fail to work, sense and update the temperature.
There can be some other walkthrough steps to establish/reestablish a connection with Honeywell thermostat and resolve the offline message issue. Check whether your thermostat has power? If not then ensure that the C wire (common wire) is connected to your Honeywell thermostat.
Every Honeywell thermostat connected using Wi-Fi network requires a C wire to provide power supply to your thermostat, except the Lyric Round model, which can operate using Phantom Power/Power Stealing. Regardless of the thermostat model, if you are using an Apple HomeKit with the Honeywell thermostat, a C wire is required in that case even. If you are unsure whether your thermostat has a C wire or not, please refer the Thermostat Wiring Compatibility page of the user manual for more information.
These Wi-Fi thermostats by Honeywell provide compatibility over the 2.4 GHz frequency. While the newer routers are designed to operate on multiple bands, usually 2.4 GHz and 5.0 GHz frequency. Therefore it is important to check that your router is emitting the 2.4 GHz frequency.
Measure the distance between the thermostat and the router to check whether the thermostat lies within the range of installed Wi-Fi signal. A simpler method to ensure the distance is by looking at the Wi-Fi signal range on a mobile device while standing close to your thermostat device.
Most of the mobile devices usually pick up 2.4 GHz & 5.0 GHz Wi-Fi signals. In extreme scenarios, you may use a Wi-Fi range extender or repeater to ensure that you have sufficient 2.4 GHz Wi-Fi coverage throughout your house or business. Additionally, check that your router’s firewall is not blocking the thermostat from accessing the network.
If the problem still persists, it is recommended to reset your thermostat device by using the reference instructions from the user manual. The manual instructions or quick start guide comes along with the product inside your thermostat’s packaging.
If you have missed the user manual, you can find the installation manuals for Honeywell products on their official website. Use the site search tool to locate your product or you may need to select the "Support" Tab on the website. From there you can select the "User Manuals & Guides" option under the "Resource Type" filter at the left navigation panel.
Hope this post resolve your connection troubles and fixes the offline error issue occurring with Honeywell thermostat.
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