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Instruction manual
Electric Actuators Type EA15-250
7.3 Troubleshooting
NOTE!
Repair the fault either while the supply voltage is still applied or when the actuator is briefly disconnected from the main power (not
eective in cycle monitoring).
1. Check the cause of fault. To do so, open the cover of the actuator, if necessary.
2. In order to remove the fault, press the SET button on the base board, in order to acknowledge the error, or disconnect the actua-
tor from the mains.
3. Perform troubleshooting in accordance with the table.
Fault Possible cause Remedy
Actuator does not react No power available ► Check voltage source.
Internal wiring error ► Correct the wiring of the actuator,
see Chapter “Installation»
End positions not correctly set ► Adjust the end positions; see Chapter
“Adjusting end positions”.
Motor blocked ► Use emergency manual override; see
Chapter “Insert the emergency
manual override hand crank”.
Actuator only runs in one direction
Position sensor defective
► Use emergency manual override; see
Chapter “Insert the emergency
manual override hand crank”.
► Perform a learning run as described
in chapter “Teaching of the position
sensor”.
Overload protection is activated Valve dirty/jammed ► Clean the valve, see valve manual.
Ambient temperature too high ► If possible, reduce ambient tempera-
ture.
Valve does not fully close or open End positions not adjusted ► Adjust the end positions, see Chapter
“Adjusting end positions”.
Valve dirty/jammed ► Clean the valve, see valve manual.
Valve does not close or open correctly Valve stem twisted ► Replace valve stem
NOTE!
If an end position is not reached, the actuator automatically switches o after 2 min. and displays an error message.
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