9Thermostat User Guide
Maint ServiceUser Settings
Maint Service
The Maintenance Service screen shows the accumulated Heat and Cool Runtime hours as well as the Service Interval
that will be used to trigger a Maintenance Message. Any HEAT or COOL type of HVAC operation will cause the respective
Runtime values to increase.
When the combined HEAT and COOL Runtime hours equals the Service Interval hours, the Red LED will flash along with
a “Maint” message to remind you your HVAC system may require periodic maintenance. Press the Menu button to enter
the Filter Service screen. The Reset button can be pressed and the HEAT and COOL Runtime values will be reset to zero.
Maintenance Service
Done Reset
Heat Runtime 200 HRS
Cool Runtime 300 HRS
Service Interval 3000 HRS
+ -
Change the Maintenance Service Interval
1. Press the MENU button.
2. Scroll to User Settings and press the Select button.
3. Scroll to Maint Service and press the Select button.
4. Press the plus (+) or minus (-) buttons to adjust the service interval.
Î The service interval can be set between 200 and 4000 hours in 100 hour increments.
Disable the Maintenance Service Interval
When the maintenance service interval is disabled, the runtime counter will continue to count the runtime, but the
maintenance service indicator will never be displayed.
1. Press the MENU button.
2. Scroll to User Settings and press the Select button.
3. Scroll to Maint Service and press the Select button.
4. Press the minus (-) button until Disabled is displayed
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