Wolf E Series General Information Manual page 66

Troubleshooting
Error Message
Code
B120 Class B communication Fault
B220 RCB class B Fault
829345 REVA
WALL OVEN ERROR CODES
Priority Component
2
2
66
E Series Oven
service.subzero.com
Service Instruction
1 Reset the electrical supply.
2 Reseat the MCB to control panel wire
connections.
3 Replace the control panel assembly.
1 Reset the electrical supply.
2 Restart self-clean.
3 Replace the relay board.