Diagnostic Error Codes
Several different error codes may be displayed on the digital readouts labeled To Process and Set Point. Most of the possible error
codes indicate some type of failure in the microprocessor controller. Below is a list of the error codes. If there are any error codes
other than the one listed below, try to reset the unit by shutting the power off and then turning it back on. If this does not work, make
a note of the error code and contact our Tech Service Department for further assistance.
Table 3 - Diagnostic Error Codes
Error
Description
Cause/Corrective Action
Pr Off
Brown Out Indication
The Pr Off code will be indicated on the display if the unit is running and main power is
discontinued or drops more than 10% below the normal operating voltage, the unit will shut down
and the Pr OFF fault will be indicated on the digital displays. Pressing the Stop button will clear
this fault condition.
101
EEPROM Failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
102
A/D Co nverter Failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
103
Controller serial bus failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
105
CJC Error
Controller requires servicing. Contact Manufacturer for repair or replacement.
109
Unused memory byte changed
Controller requires servicing. Contact Manufacturer for repair or replacement.
110
Device or communication
Controller requires servicing. Contact Manufacturer for repair or replacement.
configuration change or invalid
111
Fixed parameter associated
Controller requires servicing. Contact Manufacturer for repair or replacement.
with range invalid
112
Setpoint out of temperature range
Controller requires servicing. Contact Manufacturer for repair or replacement.
113
RAM hardware failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
114
Invalid device configuration
Controller requires servicing. Contact Manufacturer for repair or replacement.
117
Invalid program counter
Controller requires servicing. Contact Manufacturer for repair or replacement.
118
Infinite software loop detect
Controller requires servicing. Contact Manufacturer for repair or replacement.
119
Data direction register failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
120
Communication data register failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
121
Timer data register failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
122
Hardware watchdog data register failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
123
Option data register failure
Controller requires servicing. Contact Manufacturer for repair or replacement.
125
Jumper for temperature
The Err 125 fault code will be indicated on the digital displays if the jumper is loose or missing
controller missing
on the control circuit board.
129
Input Contact Chatter
Controller requires servicing. Contact Manufacturer for repair or replacement.
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