Chapter 6: Alarms and System Failure Codes
System Failure Codes
6-24 Service Manual
6.2.32 System Failure 38
System failure 38 indicates: Software has detected that door switches show that heater doors are both
open and closed (which is not physically possible).
6.2.33 System Failure 55
System failure 55 indicates: SBC board On Line Self Test Failure.
6.2.34 System Failure 60
System failure 60 indicates: Line Circuit Failure.
6.2.35 System Failure 61
System failure 61 indicates: Unable to recover from power fail.
6.2.36 System Failure 62
Cause(s) Action(s)
Defective switches or
harness
Use the service screen to determine which switches are on. Use an
ohmeter to test the switches and cabling.
Cause(s) Action(s)
Defective SBC board Replace the SBC board.
Cause(s) Action(s)
Failure in relay board LV2
calibration circuitry during
calibration
Replace relay board.
Cause(s) Action(s)
Device not able to recover
from power fail
Power cycle the device. If issue persists replace the Control Board.
Cause(s) Action(s)
Defective flat ribbon cable
between control board and
SBC
Make sure ribbon cable is properly connected and if the problem is not
resolved, replace the ribbon cable.