Fault Conditions; Warning Conditions - Enerpac AVBOLT Manuel D'instructions

Fault Diagnosis

Fault Conditions

Any fault will shut down and prevent pump from starting.
Clearing a Fault Condition from the LCD
After the fault causing problem has been corrected, clear the fault message from the LCD by disconnecting electrical
power from the pump, wait until all characters clear the LCD (~ 10 seconds), then reconnect power.
Power Failure
Display: "POWER OFF"
The Power Off fault is displayed when the main power supply drops to 65% or less of nominal voltage. The pump will
automatically shut off the valves and the motor, and display "Power Off" on the LCD.
Note: Power Off is also displayed for several seconds after the unit is disconnected from electrical power.
Button Fault
Display: "BUTTON FAULT"
The Button Fault is displayed when the microprocessor detects any button press during the boot sequence or if shroud
on/off button is held in for more than 3 seconds.
Motor Overload
Display: "MTR OVLD" - Motor Overload
The Motor Overload fault is displayed when the electric current drawn by the motor exceeds the pre-set limit of the
internal circuit breaker. (The internal circuit breaker will automatically reset once the condition has been corrected;
however, the operator must clear the fault and then press the motor on/off button to restart the motor).

Warning Conditions

All warnings notify operator of abnormal operating condition, however, allow pump to continue operating. Warnings will
automatically clear once issue has been resolved.
Low Voltage
Display: "LOW VOLT"
A "Low Voltage" condition is defined as an operating condition with the main power supply is at or below 80% of nominal
voltage. While running the pump under this condition, the "Low Voltage" signal will flash on the LCD and the Low
Voltage hours will be counted and stored on the control board. Normal pump operation is still provided.
CAUTION: For optimized pump performance it is recommended NOT to run the pump at Low Voltage condition.
25