Operating instructions

62
Message
System characteristics Cause Measures
D6 Flow switch
Well circuit flow switch
cannot detect a flow
■ Check well pump.
■ Check primary circuit.
■ If no flow switch is
installed, insert a
jumper between X3.3/
X3.4.
The signal can be tested
at connection 216.3 or
across terminals X3.3/
X3.4.
E0 LON subscriber
LON subscriber has
failed or connection is
faulty
■ Call up fault memory at
faulty subscriber.
■ Check address (system
and subscriber num-
bers); check connec-
tions and LON connect-
ing cables.
F2 Param. output 1/2
Compressor output not
selected
Set "Output" parameter
accordingly.
FF New start
Control unit restart No measures required.
Note
The system is out of use if "Simula-
tion" is displayed. Connection F11 must
not be assigned.
Troubleshooting
Messages
(cont.)
5441 603 GB