Technical data

113
Troubleshooting – Vitotronic 100, GC1
Faults displayed at the programming unit
1 Consecutive fault number
38 Fault code
U Fault symbol
Red fault lamp A flashes for all faults.
A fault code flashes in the display if
a fault message has been issued
(see page 114).
Call up further fault codes
with or .
A fault can be acknowledged
with . The fault message in the
display will be hidden, but red fault
lamp A continues to flash. A central
fault messaging device connected to
plug gÖ will be switched OFF.
The fault message will be re-displayed
if an acknowledged fault message has
not been removed by the following
morning.
Calling up acknowledged fault
messages
Press for approx. 2 seconds.
The fault will then be displayed.
Select the acknowledged fault
with or .
5351 340 v1.4
1 2 3 4 5 6 7
A