TROUBLESHOOTING
Warning messages
A WARNING (WM) signals a problem that does not prevent the system from operating.
Display Problem Troubleshooting
Open circuit at T3 disabling the
auxiliary heating
T3 probe missing
AL cannot run because no auxiliary
heating enabled
Enable the electric heating, select
a system with hydraulic heating or
disable the AL function
AL function does not work properly Check that the selected system
matches your installation, check the
correct setup of the electric and/
or hydraulic heating circuit (auxiliary
pump, boiler . . . )
E1 Not Working properly (on duration
shorter than 1 hour or period higher
than 72h)
Check the timeswitch connection
and working
Error messages
An ERROR (EM) signals a problem that does prevent the system from operating.
Display Problem Troubleshooting
Short-Circuit at T1 (T2, T3 or T4)
preventing the system from working
T1 (T2, T3, or T4) probe is faulty or
misconnected
Open-Circuit at T1 (T2, T3 or T4)
preventing the system from working
T1 (T2, T3, or T4) probe is missing or
faulty
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