Troubleshooting Steps - Viessmann VITODENS 200 Start-Up/Service Instructions

Vitodens 200 WB2 Service
Check Dekamatik-HK

Troubleshooting Steps

(continued)
Check setting of rotary switch
Dekamatik-HK1:
The rotary switch on the communication module must
be set to "4".
Dekamatik-HK2:
The rotary switch on the circuit board E4 must be set
to "4".
Dekamatik-HK 4:
The rotary switch on circuit board E4.1 must be set
to "4" and the rotary switch on circuit board E4.2 to
"5".
Please reference corresponding installation
documentation for Dekamatik-HK.
1. Establish fault message or diagnose behavior of system.
2. Look for corresponding cause of fault in the
diagnostics table.
Diagnosis
Note: See page 24 for retrieval of fault codes from
the fault memory.
for faults with fault display on control unit (see below).
for faults without fault display on control unit (page 33).
3. Find corrective action in the table.
4. Perform corrective action (page 26).
Troubleshooting
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