Question about Malibu Intermatic Inc. ML121RT Low Voltage 121-Watt Power Pack with Timer
My light string doesn't light up...it did. The clock device continues to turn, I can hear it. Manually turning the lights on and off with the little switch does not turn the lights on and off. There are three terminals on the back and the lights are connnected to A & B. I have a volt meter...how do I see if there is any voltage coming out of the transformer?
1) Disconnect the plug.
2) Remove the 3 hex screws holding the cover.
3) Make a note of all connections (taking a picture is even better).
4) Connect the black power wire to the red transformer wire.
5) Connect the white power wire to the white transformer wire.
6) Set your voltmeter to 20 or 50 volts AC (not DC and not less than 15 volts).
7) Plug the transformer in the wall.
8) Test the voltage coming from the A & B connectors at the back (polarity is irrelevant).
If you see 12 volts or thereabout, the problem is with the little switch (the one with the black and red wires that is activated by the trippers on the clock dial). I have the exact same problem but I have been unable to locate the part so I am going to try to clean the contact points and see if that works.
Posted on Aug 09, 2009
On your 'AC volts' scale go to terminals A & B when turned on. Should be 12 volts. If there is, check connections to lights. Make sure your trippers are in place on dial.
(Terminal C is for photo cell control)
Posted on Jun 26, 2009
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Posted on Jan 02, 2017
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