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Internal Error, Electronics Failure
The Erp 18 display may indicate any one of the following:
Check Oil Primary and Option Panel Displays:
-If Option Panel display shows “Err 3“, IQ Option Card Communication Error: the Erp 18error is caused by the option card. Replace defective card if error persists
-If The Oil Primary is locked out with “Internal Error” replace control if the error persists.
