Nova-Tech Digi-Sense Termperature Controller RS (Standard Models) - Manual (Page 29)

APPENDIX B
The following is a list of error messages that may be displayed by the Tem-
perature Controller and a description of corrective action.
Upper Lower
Display Display Action
normal OVER TEMP STOP PV exceeded OVER TEMP
STOP setting in user setup.
normal LOOP BREAK STOP No change in PV with output
on for user settable time
period. Adjust LOOP BREAK
STOP in user setup.
normal OPEN PROBE STOP Detected open probe sensor
while running. Check probe.
normal OVER PROBE STOP PV exceeded the upper limit of
selected probe type.
normal UNDER PROBE STOP PV went below lower limit of
selected probe type.
NO OUTPUT CHECK 10 A No AC voltage detected at the
POWER FUSE heater output. Check the
heater/cooler output fuse. If
fuse is OK, return unit for
service.
INTERNAL SERVICE Return unit to your dealer.
ERROR # REQUIRED
B-1