Error Messages; Displays In Case Of Errors; Stl - Display; 127 °C Display - Froling S3 Turbo Operating Instructions Manual

5

5.3 Error messages

5.3.1 Displays in case of errors

STL - display

127 °C display
999 °C display
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7.2
If an error has occurred and has not yet been cleared:
Error message is shown on the display (7.2)
Possible cause:
Safety temperature limiter has been triggered or the EMERGENCY
OFF has been activated
The boiler has overheated through strong reduction in heat
consumption
Customer switches for heating or pumping were switched off
Pump no longer runs (Pump defective)
Slide valves or cut-offs closed
Solution:
Unlock the STL after the boiler has cooled down
See section " 5.2 Excessive temperature"
Check customer switch
Check pump is functioning
Reopen slide valves or cut-offs
Possible cause:
Sensor not connected or interrupted
Solution:
Connect sensor or check sensor cable
Possible cause:
Sensor incorrectly connected or shortcut in the sensor cable
Solution:
Check the connection or the sensor cable
Troubleshooting
I