A093_F: Furnace Control Fault Detected
Status
This is a critical fault. The furnace will not operate in any mode of operation.
Description
Alarm "A093_F Internal Control Fault Detected" is not a standalone fault. It is accompanied by a second fault that explains the root cause of the failure. This alarm is set when any of the following faults are logged in the control:
1. A001_F Model Data Configuration Error
2. A221_F Configuration Data Restore Failure
3. A222_F Model Data Restore Failure
4. A225_F Internal Fault: Gas Vlv 1 Rly Welded Shut
5. A227_F Internal Fault: Gas Vlv 2 Rly Welded Shut
6. A117_F Detect RPM Motor Failure
Expected Operation
No operation will typically be allowed when alarm "A093_F Internal Control Fault Detected" is active. For details, see the diagnostics for the second fault.
Cause
See diagnostics for the second fault.
Solution
See diagnostics for the second fault.
