8 Troubleshooting – Possible faults
174
F072
Temp. acc. bot-
tom house 1
short circuit
•
Short circuit in sensor or in
cable
•
Have the fault fixed by a qua-
lified electrician
F073
Temp. acc. bot-
tom house 1 open
circuit
•
Sensor not connected
•
Sensor is faulty
•
Have the fault fixed by a qua-
lified electrician
F075
HC module 1
not connected
•
No power supply
•
Bus cable is incorrectly con-
nected
•
Fuse F2 is faulty
•
Check power supply and
cable
•
Replace fuse F2
F080
to
F093
Open circuit or
short circuit in
temp. sensors or
indoor thermos-
tat units
•
see F046 and F047
•
see F046 and F047
F103
HC module 1
ADC fault
•
Heating circuit module is
faulty
•
Replace heating circuit
module
F104
HC module 1
Error 0 signal
•
Heating circuit module is
faulty
•
Replace heating circuit
module
F110
Temp. acc. top
house 2 short
circuit
•
Short circuit in sensor or in
cable
•
Have the fault fixed by a qua-
lified electrician
F111
Temp. acc. top
house 2 open
circuit
•
Sensor not connected
•
Sensor is faulty
•
Have the fault fixed by a qua-
lified electrician
F112
Temp. acc. bot-
tom house 2
short circuit
•
Short circuit in sensor or in
cable
•
Have the fault fixed by a qua-
lified electrician
F113
Temp. acc. bot-
tom house 2 open
circuit
•
Sensor not connected
•
Sensor is faulty
•
Have the fault fixed by a qua-
lified electrician
F131
ADC fault
Boiler cct board
•
Circuit board defective
•
Replace circuit board
F132
Error 0 signal
•
Circuit board defective
•
Replace circuit board
F133
RAM fault
Back-up battery
•
Back-up battery empty
•
Replace buffer battery
F140
Transport module
not connected
•
Check voltage supply
•
Check data cable
•
Have the fault fixed by a qua-
lified electrician
No.
Fault
Cause
Remedy
Table 8/1 - Faults
Содержание Compact 25
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