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SunTouch
®
Control System Installation and User’s Guide
Self Test Error Codes
The “Self Test” feature is intended for use by service personnel. If after performing a control panel self test
(see Diagnostics menu page 25) there were no errors detected, Code 0 is displayed, indicating that there were
no problems and the test was successful. If a problem is detected during the test, an error code is displayed
upon completion of the test. For example Code 1 would indicate a problem with the display. If multiple errors
are detected, multiple code numbers are displayed. For example, Codes 4, 2, 1, would indicate problems
detected with the buttons, LCD contrast, LCD backlight on the control panel.
The following lists the control panel self test error codes.
Error Code Table
SunTouch
®
Control System Error Messages
Error Messages
If the system detects that a sensor is not connected to the SunTouch
®
Control System Power Center or it is
defective, an error message is displayed in the Diagnostics menu (page 25). The following lists the sensor
errors.
Error Message
Possible Cause
Solution
Air Err (Displays on the Main
Screen)
Air sensor not connected to
the SunTouch motherboard.
Check that the air sensor plug is connected to J21
connector on the motherboard. Check that the sen-
sor wire is connected properly.
Air Temperature Err (Displays in
the “Diagnostics” menu)
Air sensor not connected to
the SunTouch motherboard.
Check that the air sensor plug is connected to J21
connector on the motherboard.
Error Code
Description
Code 0
PASS - The control panel has
no problems
Code 1
LCD backlight
Resetting the System Fuses
The
SunTouch Control System
Power Center provides two resettable fuses to protect the 18 VAC and 24
VAC circuits. The fuses are located on the front panel of the
SunTouch Control System
Power Center.
Press the fuse button to reset the fuse. See page 40 for fuse locations.