Emerson 1F85U-22NP Installation And Operating Instructions Manual page 8

TROUBLESHOOTING (C0ntinued)
Symptom Possible Cause
1.) Heating system is not able to heat
2.) Cooling system is not able to cool
3.) If "--" is displayed for the Room
"Call for Service"
icon appears on
displayed
4.) None of the buttons operate on
5.) If "Call for Service" is flashing,
Resetting the Thermostat or Thermostat Settings
If the thermostat has good batteries, but has a blank display or does not respond to key press-
es, the thermostat should be reset by removing the batteries for 2 minutes. This reset will not
change the menu settings or program. If the condition persists after reinstalling the batteries,
replace the thermostat.
To conveniently reset only the schedule and user settings back to factory defaults, press Menu
and Backlight buttons at the same time and hold until the display goes blank and resets.
WARNING: This product contains a chemical known to the state of California
to cause cancer and birth defects and other reproductive harm.
Emerson and White-Rodgers are
trademarks of Emerson Electric Co.
©2020 Emerson Electric Co.
All rights reserved.
the space to within 10 degrees of
the setpoint within 2 hours
the space to within 10 degrees of
the setpoint within 2 hours
Temperature, a replacement
thermostat is needed
the thermostat
compressor self diagnostic is
detecting an issue with the
outdoor unit
HOMEOWNER HELP LINE: 1-800-284-2925
emerson.com/white-rodgers
Corrective Action
1.) See corrective action for "No Heat"
2.) See corrective action for "No Cool"
3.) Replace thermostat
4.) Make sure keypad lockout is not turned on ( ),
If it's OFF, try reset shown below.
5.) Contact a service person to verify the outdoor
equipment is operating correctly