507607-03
Issue 1827
Page 18 of 23
Mode
Description
Example of Display
Anti-Short Cycle
Delay
Middle line shall blink at 1 Hz for 2 seconds, followed by a two-second
display of the rounded up number of minutes left in the timer (two
minutes, one second shall be displayed as “3”). The Anti-Short Cycle
Delay time remaining is displayed when the delay is active.
Cooling Stage
Shows what stage of heat pump is
currently operating.
Following string is repeated if two-stage cooling is active with outdoor
fan speed set at 700 RPM.
NOTE
: A - If available, displays outdoor
ambient temperature.
C2
pause
F700
pause
Heat Pump Stage
Shows what stage of heat pump is
currently operating.
Following string is repeated if first-stage cooling is active with outdoor
fan speed set at 600 RPM.
NOTE
: A - If available, displays outdoor
ambient temperature.
H1
pause
F600
pause
Defrost Mode
Shown only while in an active defrost.
Following string is repeated if defrost is active while unit was in first-
stage heat pump heating mode:
dF
pause
H1
pause
Dehumidification
Mode
Shows that the unit is providing
dehumidification instead of straight
cooling.
Following string is repeated if dehumidification is active with outdoor
fan speed set at 225 RPM:
d
pause
f225
pause
Diagnostic Recall
Shows the last 10 stored diagnostic
error codes.
If first error is
E250
, second
E231:E
pause
250
pause
E
pause
231
Next codes (up to 10) are shown using same method.
If there are no error codes stored:
E
pause
000
Fault Memory
Clear
After the fault memory is cleared, the following string is displayed with
0.5 seconds character on/off time:
0000
pause
Active error in
outdoor control
idle mode
Shows all active error(s) codes.
Following string is repeated if Error E125 and E201 are present:
E125
pause
E201
Active error in run
mode
Shows current status and all active
error(s) codes.
Following string is repeated if Error E311 is present while blower speed
at 700 RPM:
F700
pause
E311
Outdoor Ambient
Temperature
(OAT)
Any time OAT is sensed in operating
range, value is displayed if unit is in
diagnostic and non-diagnostic modes.
Following string is repeated if second stage cooling is active with
outdoor fan speed set at 650 RPM and OAT is 104°F:
C2
pause
F650
pause
A104
pause
Outdoor Coil
Temperature
(OCT)
Any time OCT is sensed in operating
range, value is displayed if unit is in
diagnostic mode.
Following string is repeated if 2nd stage heat is active with outdoor fan
speed set at 550 RPM and OCT is 25°F:
H2
pause
F550
pause
c25
pause
Discharge Line
Temperature (DIS)
Any time DIS is sensed in operating
range, value is displayed if unit is in
diagnostic mode.
Following string is repeated if 2nd stage cooling is active with outdoor
fan speed set at 650 RPM and DIS is 185°F
C2
pause
F650
pause
d185
pause
*Information will be displayed, but does not apply to this unit.
Table 6. Outdoor Control 7-Segment Unit Status Displays
