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Error Codes
The controller also has the capability to display error codes. The codes are:
Display Indication
16 Bad calibration data, redo calibration
19 Temperature below low temperature setpoint
21 Temperature above high temperature setpoint
22 Excessive high temperature, unit requires immediate
attention
23 Shorted RTD2
24 Open RTD2
25 Shorted RTD1
26 Open RTD1
ADD Reservoir fluid below normal operating level, add fluid
The unit will continue to run with any of the above codes. If any other
code appears contact customer service, see Preface.
NOTE: Depressing the NEXT ENTER key may clear error codes 01 through 04.
Doing so restores the controller to factory-set default values.
Displaying Software
Version
This procedure will display the software version number on the units display. In
the event the unit is not operational, the software version (and the checksum)
can also be read from the label which is on the microprocessor chip itself.
The following chart uses an example of software version 000507.49b
begin at the reservoir temperature display 20.3°C
Press and hold NO for at least 10 seconds. 0507
displays software version digits to left of decimal. Note the two leading zeros
do not display.
Press NEXT 49
displays software version digits to right of decimal.
Press NEXT 2
displays software version revision letter (as its equivalent number - display
cannot show letters. A=1, B=2, etc.)
Press NEXT 0000
displays checksum - this can be disregarded
Press NEXT 20.3°C
returns to reservoir temperature display
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