Troubleshooting - Wolf MGK-2-390 Installation Instructions Manual

Fault Fault
code
107 HC pressure
Button
Button
BCC Boiler chip card
CRC Cyclic redundancy check
EEPROM Rewritable memory
BCU Burner control unit
GCV Gas combination valve
IO Ionisation signal
HLSC High limit safety cut-out
eHLSC Electronic high limit safety cut-out
TL Temperature limiter
TBA Flue gas high limit safety cut-out
TW Temperature limiter
64

35. Troubleshooting

Cause
Water pressure too low, water pressure too
high
Remedy
Test system pressure, test cable,
press reset, test water pressure
sensor
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