Appendix, Troubleshooting – Despatch DES2000 Controller User Manual
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APPENDIX
Troubleshooting
Equipment that operates for long periods may develop problems. The DES2000 was
designed to have minimal problems; however, if there are problems please do the
following:
1. Have a qualified maintenance person verify wiring is correct.
2. Check the tuning and configuration parameters.
3. Verify that the thermocouple is working properly.
4. If everything is set up correctly, contact the Despatch Help Line at 800-473-7373
for assistance.
Table 7 Error Displays and Content
Display
Error Content
Unknown (at power-on)
CPU failure
“Err” (at power-on)
Calibration abnormal
Flashing “Err” (at power-on)
RAM or ROM failure
Flas
hing “Err” (during operation)
A/D converter failure, RJC failure, or EEPROM
failure
000 or b.o
Open thermocouple