Emerson 90 SERIES 1F95-391 - Manual (Page 35)

33
Index Troubleshooting
RESETTING THERMOSTAT
The thermostat can be reset back to factory default programs and configuration options. Removing power from the thermostat will
not reset it to the default settings. Before resetting the thermostat you may want to make note of the previously selected configura-
tion options and programming.
To reset the thermostat, press and release PROGRAM
RUN
, then press the
FAN
, TIME
BACK
and buttons at the
same time. This will reset the thermostat to factory default programs and configuration. The display will momentarily go
blank, and then all segments on the display will momentarily be shown. The thermostat will then go into the AUTO HOLD
mode and will maintain a factory preset temperatures of 62
° F in Heat or 85 °F in Cool . To clear the HOLD TEMPERA-
TURE overide press the PROGRAM
RUN
button.
TROUBLESHOOTING
POSSIBLE CAUSE
1. Blown fuse or tripped circuit
breaker.
2. Furnace power switch to OFF.
3. Furnace blower compartment
door or panel loose or not properly
installed.
CORRECTIVE ACTION
Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage
safety interlock or door switch.
SYMPTOM
No Heat/No Cool/No Fan
(common problems)