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OpenAir GEB Series Enhanced Rotary Non-Spring Return Damper Actuators
Service
Troubleshooting
Dimensions
Figure 22. Dimensions of the ASK75.7U Weather Shield in Inches (Millimeters).
Siemens Industry, Inc.
WARNING:
Do not open the actuator.
If the actuator is inoperative, replace the unit.
WARNING:
To avoid injury or loss of life, pay attention to any hazardous voltage
(Example: 120 Vac) when performing checks.
•
Check that the wires are connected correctly.
•
Check that auxiliary switches, DIP-switches, and Offset/Span are set correctly.
•
Set the DMM dial to Vac and verify that the operating voltage is within range.
•
If the actuator is not working, check the damper for blockage. If blocked,
remove the obstacle and cycle the actuator power off and on. The actuator
should resume normal operating mode.
Technical Instructions
Document Number A6V12029156
December 16, 2021
Page 17
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