ESIE13-02
Error Codes: System Malfunctions
143
Part 4 – Troubleshooting
4
3
4
5
4
5.3
“U3”
Underfloor Heating Screed Dry-out Failure
Remote controller
display
U3
Method of
malfunction
detection
An interruption during the underfloor heating screed dry-out program is detected.
Malfunction
decision conditions
Screed dry-out program was interrupted incorrectly (ex. by accident by end user).
Supposed causes
Another error,
U3
only generated when other error is solved.
Operation OFF button pushed
Power failure
Troubleshooting
Check if dry-out schedule was interrupted.
If schedule was interrupted by mistake reset error and continue dry-out again.
If schedule was interrupted deliberately, reset U3 error and start operation (dry-out is responsibility
of the installer according to instructions of screed manufacturer)
Attention!
U3 error can only be reset in installer level, to avoid that the installer is not informed that the dry-out
schedule was interrupted.
