Fault; Symbols In Fault And Warning Messages; Displaying The Message History; Dealing With Fault And Warning Messages - Wolf COB-2 Operation Instructions Manual

Fault

8 Fault
BM-2 programming unit installation instructions for contractors
AM display module installation instructions for contractors
WOLF Service App: Fault code inspector
NOTE
Fault reset without rectifying the cause!
Damage to components or the system.
► Faults must be rectified by a contractor.
NOTE
Fault reset with flue gas temperature too high!
Destruction of the flue system.
► Allow the flue system to cool.
NOTE
High temperatures at the heating water heat exchanger!
Fault cannot be acknowledged.
► Allow the heat generator to cool.
8.1

Symbols in fault and warning messages

Faults and warnings are shown in plain text on the display of the control module.
Symbol Explanation
Active warning or fault
min How long the message has been active
Fault message which deactivates the heat generator with a lockout.
8.2

Displaying the message history

It is possible to open a message history and display the most recent fault messages in the contractor
i
level (BM-2) or the contractor menu (AM).
► Select message history in the contractor level (BM-2) or the contractor menu (AM).
8.3

Dealing with fault and warning messages

► Identify the code.
► Determine the cause
► Rectify the cause.
► Acknowledge fault message.
► Check that the system is functioning correctly.
8.4

Fault codes

8.4.1

Fault messages

The control unit automatically acknowledges faults such as faulty temperature sensors or other
i
sensors if the part concerned has been replaced and plausible test values have been supplied.
Fault Message
code
1 HLSC excess temp.
3066501_201910
(Table 8.1 Fault messages, Table 8.2 Warning
Cause
– High limit safety cut-out was
triggered.
– The flow temperature has
exceeded 110°C.
messages).
Remedy
► Check sensor/cable.
► Check the heating circuit
pump.
► Vent the system.
► Press reset button.
► Clean the heating water heat
exchanger.
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