The rumbler consists of two motors -
Extending the cable
The cable is shielded and contains four wires, red and white for the left motor, brown and orange for the right motor (although the colours used and the connections inside the rumbler may vary). There is no connection to the cable screen inside the rumbler. The screen connects to the metal shell of the rumbler plug and thus to ground via the socket shell on the wallwasher.
The rumbler is connected to the wallwasher by 8-
If you are making your own extension cable, the simplest way is to buy eight core
shielded cable and connect all pins / holes. You could use six core cable and not
connect any wires to the “No Connection” pins / holes. Or you could use four core
shielded cable and short out the two pins inside the plug that will go to the wallwasher,
connecting the four wires to the four pins / holes that are used for the two motors.
The cable shield must be connected to both the plug shell and the socket shell. It
doesn’t matter what colour the wires are as long as the same colour goes to the same
number pin / hole -
Testing the cable
Do a grid test on the cable before connecting the rumbler to make sure there are no short circuits and that the
correct pins / holes are joined together
Replacing the cable
Open the rumbler and make a note of where the existing wires go. Get the cable as
above. Get an 8-
On some rumblers, the wires from the plug go straight to the motors. On others, the wires from the plug may be terminated at a connection inside the rumbler and separate wires go to the motors. Once finished, check the connections are correct before plugging the fan in. Check there is not a connection between either of the VCC pins and GND.
Fig. R1: Grid test -