Technical info.
Service manual
No power to motor
1. Carry out a resistance test around the entire product (points 1-2) to determine there is a genuine
fault.
2. If there is a fault check the plug, pins and entire length of the powercord for any signs of wear or
damage.
3. Remove the cable rewind assembly from the product (following all safety precautions shown on
pages 08-09), and check for any damage on the outer contacts of the cable wiring retainer
assembly that would result in an open circuit between the wiring retainer and cable rewind
assembly.
4. Carry out a resistance test along the length of the powercord (points 1-3 and 2-4).
5. Remove the actuator housing and check that the wires are attached to the On/Off switch
(points 7 and 8).
6. Check the mechanical actuation of the On/Off switch.
7. Carry out a resistance test across the switch (points 9-10) ensuring the switch is in the On position.
8. Remove the cable wiring retainer assembly from the product (see pages 38 and 39 for instructions)
and check that the Live (point 5) wire from the On/Off switch and Neutral (point 6) wire from the
main body loom are attached to the assembly.
9. Check the cable wiring retainer assembly for any signs of damage that would result in an open
circuit.
10. Carry out a resistance test along the length of the live wire that connects the cable wiring assembly
to the On/Off switch (points 5-7).
11. If all of the above checks do not rectify the fault, replace the Main chassis and motor assembly.
Electrical fault diagnosis
04
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