Wolf COB-2 - Faults and Troubleshooting; Fault Codes and Message Handling

Fault
3066501_201910 WOLF GmbH | 65
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 rectied by a contractor.
NOTE
Faultresetwithuegastemperaturetoohigh!
Destruction of the ue system.
► Allow the ue 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
i
It is possible to open a message history and display the most recent fault messages in the contractor
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 (Table 8.1 Fault messages, Table 8.2 Warning messages).
► Rectify the cause.
► Acknowledge fault message.
► Check that the system is functioning correctly.
8.4 Fault codes
8.4.1 Fault messages
i
The control unit automatically acknowledges faults such as faulty temperature sensors or other
sensors if the part concerned has been replaced and plausible test values have been supplied.
Fault
code
Message Cause Remedy
1 HLSC excess temp. – High limit safety cut-out was
triggered.
– The ow temperature has
exceeded 110°C.
► Check sensor/cable.
► Check the heating circuit
pump.
► Vent the system.
► Press reset button.
► Clean the heating water heat
exchanger.