Sub-Zero Classic Series (BI) Control Fault | Baffle | No Communication | Error 90 b 80
- Error code 90 b 80
- Classic series (BI) shows 90 b 80
- 90 b 80
- Control faults baffle no communication
- No stepper micro communication
Turn the home circuit breaker to the unit off for 30 seconds then back on again. Then retest the unit operation.
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