Question about Malibu Intermatic Inc. ML121RT Low Voltage 121-Watt Power Pack with Timer
I have two different transformers and want to replace the lighting from halogen to LED. I have purchased Model 8401-9613-01 lighting (4). Can I put 2 each on 2 different transformers, models ML121RT & ML88L model DA 88?
Posted by Anonymous on
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Posted on Jan 02, 2017
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
You might need to check the power source for proper voltage, sometimes outdoor wiring is at the mercy of the elements. Rusty screws on recepticles and so forth. Another problem could be exposed wire in the line bleeding of to ground. Sometimes this happens if a fixture is removed and the wire not properly protected. If these are none of your problems just take up your fixtures and replace the wire. 16 guage underground feed will probably be less expensive than the transformer you bought.
Posted on Dec 22, 2009
SOURCE: Timer model PB912M10 does not
I answer questions for free.
I specialize in timers and electrical devices.
I hesitate to answer about Malibu power packs because there are no parts or repairs for a power pack, and the owners of this product are angry that such an expensive item is unrepairable and then they downvote a truthful answer that is provided for free.
Here's what I've done for fixya customers.
For hours, I searched Intermatic Timers, Malibulights.com, and the web looking for parts and solutions for the Malibu power pack. There are no parts or solutions.
I purchased a power pack from Home Depot and examined it and then read the manual from head to toe.
The answer is this: if the power pack is not working for any reason and the receptacle has power, then the power pack is busted and you need another one.
However I can save you money on your next power pack, and that may be worth your trouble coming to fixya:
Your next power pack:
1) Match up wattage of bulbs with wattage of power pack.
15 each - 20 watt bulbs = 300 watts = 300 watt power pack ... if you buy the 500 watt power pack for 300Watts of bulbs, then it will burn up the bulbs and the power pack.
2) Replace bulbs as soon as they burn out or other bulbs will burn out and the power pack will burn out
3) When working on bulbs, unplug power pack or the power pack may burn out
4) Use the link below to help plan your low-voltage lighting
Purchase a power pack:
Home depot sells Malibu power packs.
Lowes sells a Low-voltage power pack similar to Malibu
Posted on Nov 07, 2010
Power pack is getting electricity.
Connections are good where lights tie into wire.
My power pack was doing same thing.
I tried everything from spraying WD40 to trying to taking it apart.
Power pack doesn't come apart.
I turned it upside down thinking water or dirt got into timer.
I took it inside and let it warm up.
It still wouldn't work.
Then I searched Intermatic and Malibulights.com for answer, but they have no troubleshooting or repair.
Conclusion: when power pack doesn't work, it is broken.
I found tips to preserve power packs, but over the years I pretty much followed these steps and power pack still failed.
1) Match wattage of bulbs with wattage of power pack
-15 each X 20 watt bulbs = 300 watts, so install 300Watt power pack
2) Installing a 500W power pack on 300W of bulbs will burn out bulbs and power pack.
3) Replace bulbs as soon as they burn out or other bulbs will burn out and power pack will burn out.
4) When working on bulbs, unplug power pack or it may burn out.
Posted on Nov 19, 2010
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