Sun Yeh Electrical OM Series - 8. Product Warranty; 9. Product Disposal

Quarter -Turn Electric Valve Actuator【OM Series】 Sun Yeh Ele. Ind. Co., Ltd. | 2021.11
41
The valve does not operate no matter under either electrical operation or manual operation.
Possible problems
Solution
a. The actuator was mounted to the valve
improperly.
b. The set screw of the cam loosened and
resulted in that the travel end positions
misaligned.
c. The torque of valve is larger than the
torque of actuator.
d. The actuator was mounted to the valve
improperly.
a. Please refer to 4.2 (P.8) valve installation
instructions.
b. Readjust the mechanical end stops and
limit switches, please refer to 4.4.2 (P.11 -
P.16).
c. Replace with a new valve or a larger size
actuator.
d. Disassemble the actuator from the valve
and reassemble them to verify that they are
installed properly.
When power is on, LED indicators did not function.
Possible problems
Solution
a. Blown fuse.
b. PCB failed.
c. Wrong supply voltage.
a. Replace a new fuse.
b. Replace a new PCB.
c. Check the power supply.
The capacitor is failed.
Possible problems
Solution
Worked in an environment out of the
withstandable temperature range.
Please use the capacitor at temperature
between -30 °C to +65 °C (-22 °F to +149 °F).