Low Battery
•
When the batteries are low, the battery icon will come on and flash.
The two AAA Batteries in the unit need to be replaced. In some
installations your heater system will stop functioning when the thermosat
loses power.
Replace batteries as soon as you see this warning.
The
thermostat programs will remain for 30 seconds while the batteries are
removed and replaced.
•
Do not take longer than 30 sec to change the batteries in your unit
or you will lose all custom settings and all programming. Only the energy
saving program will remain. Once the batteries are replaced, the system will
return to normal in 2 seconds.
PG
11
PG
10
Filter
The life of a HVAC filter varies depending on many factors, furnace run time,
and this will vary from the filter life noted on the filter media. The 3M-22 has a
feature that keeps track of actual furnace run time and reminds you to
periodically replace your system's air filter.
•
Press the FILTER button once to review the current filter record.
The
FILTER
and
WKS
icons come on with filter run-hours being displayed.
•
Press
to clear the record. Press again to recover old run-time.
• To SET or see the LIMIT FILTER setting, press and hold the FILTER button
for two seconds. The default filter limit is set to 0 weeks and the max setting is
99 weeks. Use the buttons to set the filter limit. The LIMIT
FILTER must be set to get a FILTER warning on the HOME screen when the
filter needs service.
To leave the filter display, press
HOME
or wait 60 seconds.
TIME
TIME
TIME
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