20
Alerts and reminders
Number Alert/Reminder Definition
181 Replace Air Filter (1) Replace air filter (1). Reset the timer by touching
the "dismiss" button on thermostat screen after it is
replaced.
182 Replace Air Filter (2) Replace air filter (2). Reset the timer by touching
the "dismiss" button on thermostat screen after it is
replaced.
183 Clean Humidifier Tank
and Replace Water
Filter
Clean humidifier tank and replace the water filter, or
contact dealer to do this for you. Reset the timer by
touching the “dismiss” button on the thermostat screen
after it is replaced.
184 Replace Humidifier
Pad
Replace humidifier pad. Reset the timer by touching
the “dismiss” button on the thermostat screen after it is
replaced.
185 Replace Dehumidifier
Filter
Replace the dehumidifier filter. Reset the timer by
touching "dismiss" button on thermostat screen after it
is replaced.
186 Clean Ventilator Core Clean ventilator core. Reset the timer by touching
the “dismiss” button on thermostat screen after it is
replaced.
187 Clean or Replace
Ventilator Filter
Clean or replace ventilator filter. Reset the timer by
touching the “dismiss” button on thermostat screen
after it is replaced.
188 Replace UV Bulb (1) Replace UV Bulb (1). Reset the timer by touching
the "dismiss" button on thermostat screen after it is
replaced.
189 Replace UV Bulb (2) Replace UV Bulb (2). Reset the timer by touching
the "dismiss" button on thermostat screen after it is
replaced.
210 Register Online For
Outdoor Temperature
Online registration is required to receive outdoor
temperature from the Internet. Outdoor temperature
is needed for your current system setup. Download the
Honeywell Home app to register your thermostat.
388 Register Online for
Remote Access and
Outdoor Temperature
Online registration is required for remote access and
outdoor temperature. Download the Honeywell Home
app to register your thermostat.
399 No Internet The connection to the Internet has been lost. Please
check your network settings.
400 No WiFi Signal The WiFi signal has been lost. Please wait for the
thermostat to reconnect or select a new WiFi network.
Follow steps in the Honeywell Home app
508 WiFi Not Configured Please download the Honeywell Home app and follow
the steps to connect thermostat to your WiFi network.