PolyScience DuraChill 58 Series, User Manual

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Problem Possible Causes Corrective Action
Fault code 11 on display Internal probe failure Contact service representative.
Fault code 12 on display Loose external probe
connection
Faulty external temperature
probe
Check and correct as required.
Replace as required.
NOTE: Chiller may be operated using internal probe until
problem is corrected.
Diagnostic Mode
NOTE: The Chiller must be set to display temperature in °C in order to access the diagnostic mode.
The Chiller incorporates a Diagnostic mode, which displays important operational information that can aid in
troubleshooting. To access the Diagnostic mode, place the Circuit Breaker/Power Switch in the OFF position and
then return it to the ON position while pressing and holding the Select/Set Knob. The diagnostic menu appears on
the Pressure/Flow Rate Display; the current value for the diagnostic item appears on the Temperature Readout.
NOTE: Diagnostic items are display values only; they cannot be changed.
Menu Item Description
At Ambient temperature at front panel
EC External control
Li Percent of Line voltage
Ct Chiller type (model)
Fb Fuse bits (remote control voltage, contact closures, etc.)
EP External probe temperature and “---“, displayed when external probe is not installed
03 (variable numeric value) Fluid flow rate or pressure;
Temperature Display shows current fluid temperature