1.SC Codes
120
Error Name/Error Condition/Major Cause/Solution
Replace the controller board.
Check the control panel harness.
Error Name/Error Condition/Major Cause/Solution
Controller start up error
Communication with controller was interrupted after a normal startup.
Controller stalled
Board installed incorrectly
Controller board defective
Operation panel connector loose, broken, or defective
Controller late
Turn the main power off/on.
Check the connection of the controller board.
Replace the controller board.
Check the control panel harness.
Error Name/Error Condition/Major Cause/Solution
Controller start up error
The operation panel detected that the controller is down.
Board installed incorrectly
Controller board defective
Operation panel connector loose, broken, or defective
Controller late
Turn the main power off/on.
Check the connection of the controller board.
Replace the controller board.
Check the control panel harness.
Error Name/Error Condition/Major Cause/Solution
Controller start up error
The operation panel software ended abnormally.
Board installed incorrectly
Controller board defective
Operation panel connector loose, broken, or defective
Controller late