Page 11
TABLE 3
Integrated Control Diagnostic Modes
Display
Action (when button released)
No Change
Remain in idle mode
Solid “E”
Enter diagnostic recall mode
Solid “F”
Enter flame signal mode
TABLE 4
Code
Diagnostic Codes/Status of Equipment
Action Required to Clear and Recover
.
Idle mode (Decimal blinks at 1 Hertz -- 0.5
second ON, 0.5 second OFF).
C
Cooling stage (1 second ON, 0.5 second OFF)
1 or 2 displayed / Pause / Repeat codes.
d
Dehumidification mode (1 second ON, 1
second OFF) / Pause / Repeat Codes).
H
Gas Heat Stage (1 second ON, 0.5 second
OFF) 1 or 2 displayed / Pause / Repeat codes.
Blinking during ignition.
h
Heat pump stage.
E110
Low line voltage.
Line Voltage Low (Voltage lower than nameplate rating). Check power
line voltage and correct. Alarm clears 5 seconds after fault recovered.
E111
Line voltage polarity reversed.
Reverse line power voltage wiring. System resumes normal operation
5 seconds after fault recovered.
E112
Ground not detected.
System shuts down. Provide proper earth ground. System resumes
normal operation 5 seconds after fault recovered.
E113
High line voltage.
Line Voltage High (Voltage higher than nameplate rating). Provide
power voltage within proper range. System resumes normal operation
5 seconds after fault recovered.
E114
Line voltage frequency out-of-range.
No 60 Hertz Power. Check voltage and line power frequency. Correct
voltage and frequency problems. System resumes normal operation 5
seconds after fault recovered.
E115
Low 24V - Control will restart if the error
recovers.
24-Volt Power Low (Range is 18 to 30 volts). Check and correct
voltage. Check for additional power-robbing equipment connected
to system. May require installation of larger VA transformer to be
installed in furnace / air handler. Clears after fault recovered.
E117
Poor ground detected (Warning only).
Provide proper grounding for unit. Check for proper earth ground to
the system. Warning only will clear 30 seconds after fault recovered.
* No change implies the display will continue to show whatever is currently being displayed for normal operation (blinking decimal, active error code, heat state, etc.)
Diagnostic LED (Figure 4)
The seven-segment diagnostic LED displays operating
status, error codes and other information. The table be
-
ginning on Page 11 lists diagnostic LED codes.
Diagnostic Push Button (Figure 4)
The diagnostic push button is located adjacent to the sev
-
en-segment diagnostic LED. This button is used to enable
the Error Code Recall “E” mode and the Flame Signal
“F” mode. Press the button and hold it to cycle through a
menu of options. Every five seconds a new menu item will
be displayed. When the button is released, the displayed
item will be selected. Once all items in the menu have
been displayed, the menu resumes from the beginning
until the button is released.
Error Code Recall Mode
Select ”E” from the menu to access the most recent 10
error codes. Select “c” from the Error Code Recall menu
to clear all error codes. Button must be pressed a second
time while “c” is flashing to confirm command to delete
codes.
Press the button until a solid “≡” is displayed to exit the
Error Code Recall mode.
Flame Signal Mode
Select ”F” from the menu to access the flame signal mode.
The integrated control will display the flame current on
seven-segment LED in in micro amps (uA). Flame signal
mode is exited after any of the following:
•
Power is reset
•
Pressing and holding push button until 3 horizontal
•
lines “≡” are displayed
•
10 minutes after entering the flame sense mode.
