Dexter Laundry T-950 - Errors

Fault# Description Customer Action
OH_THERMISTOR_
OPEN
There is an open circuit across
the OH thermistor terminals or
the measured temperature is
below -33 degrees F (above 310
Mohms)
Check OH Thermistor
connections
Check OH Thermistor
resistance
DRIVE_
COMMUNICATION_
ERROR
Failure to reset VFD, communication
retry failure over 3 times
Check VFD cable
Check VFD power
DRIVE_CRC_MISMATCH_
ERR
CRC mismatch in VFD message Check VFD FW
Check VFD cable
Check for noise on VFD cable
DRIVE_ENABLE_ERROR VFD speed still 0 after commanding
frequency 3 times
Check VFD enable relay
Check VFD enable connector
Check VFD enable cable
DRIVE_EXCEPTION_
ERROR
Exception received from VFD Refer to Graphics board for
specic exception
SLOW_SPIN_ERROR VFD frequency is not within 10%
of the command frequency after
time specied by acceleration
type
Check VFD load
DRIVE_RESETTING Temporary warning indicating
that the drive was commanded to
reset
Check VFD FW
Check VFD cable
Check for noise on VFD
cable
DRIVE_RESET_
COMPLETE
Warning used to indicate a VFD
reset was successful
No Action Required
MODEL_DRIVE_SIZE_
ERROR
VFD size does not match
machine conguration parameters
Check model header
Check model conguration
DRIVE_PARAMETER_
ERROR
VFD parameters not match
machine conguration parameters
Check model header
Check model conguration
NON_DEXTER_DRIVE Failed to validate Dexter Drive Check VFD model
SPIN_TIME_ERROR VFD frequency is not 0 after time
specied by deceleration type
Check VFD
Check Drum
VFD_ FAULT Fault detected on VFD Check Graphics board for
which fault
VFD_HARD_ERROR Unknown error returned from the
VFD
Check VFD
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Part # 8533-110-001 11/20