Sub-Zero Classic Series (BI) Control Faults | Air Filter | FET Power Output Fault | Error 90 A 38
- Error code 90 A 38
- Classic series (BI) shows 90 A 38
- 90 A 38
- Control fault air filter FET power output fault
- Air filter fan output fault on control board
- Turn the home circuit breaker to the unit off for 30 seconds then back on again.
- Retest the unit operation.
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