1) Copy following link for malibu power pack tips for longer transformer life:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html
2) Two plug choices on each outlet, Plug power pack into other outlet on receptacle.
Inspect for damage on outdoor outlet.
Replace outdoor outlet, and do not use quick connects. Connect wire directly to screws on side of device.
Replace GFCI outlet.
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SOURCE: Malibu ml200rt internal wiring schematics
If you have a meter you can test for 12 volts AC on the output of the transformer. They go to terminals
A & B
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SOURCE: I just bought a new Malibu Landscape Lighting 200
working with those outdoors transformer I have ran into couple would short the unit out by installing it wrong or exposing to lots of waters/moister. Again, it could also be a factory fault unit, some products will only last only few days before it blow out. It happen and most of those unit have 5 years warranty on them. I would take it back and get another and if it happens again than you may not installing it correctly or installing too close exposing to lots of moister and may short the unit out. I don't recommend trying to fix it still having warranty on them, get a replacement and start over. good luck and i hope that help some
SOURCE: Hello! I have a Malibu transformer
Malibu website
>knowledge base search is located top right corner of website
> I serched knowledge-base for 'lights not working' >>> came back with thin results
> Evidently Malibu doesn't have knowledge of lights not working
Here's simple test: Leave unit plugged in. Remove wires from unit. Use On-off dial to turn ON system. Use wire to scratch across terminals where wires connect >> do you see any sparking that would indicate voltage is present? if voltage is present, your lights may be burned out from last night's power surge ... or those pesky contacts that connect light to the main wire need to be re-done. More info on burned out lights below
another clue: is malibu box warm when you touch it? Transformers get warm because 120V continually runs through a coil ... and the magnetic field from the first coil creates lower voltage in another coil. Same as your phone charger. Transformer runs 24-7. The timer does not turn off the transformer, it just switches off the main wire going to lights
If transformer is warm, it says that power is available. That would narrow problem down to timer mechanism. You might try turning malibu upside down for a couple days in dry environment and see if that revives the unit.
If transformer does not feel warm, then transformer is probably burned out. Electrical devices go bad, especially when exposed to weather.
Malibu manual has some troubleshooting steps located below step 8.
-You checked electric supply.
-Turn on-off dial to ON to see if override works
-Troubleshooting mentions power conditions/ voltage conditions ... which I assume would include power surge ... it doesn't say specifically that this causes transformer failure .. but it points to bulb failure.
-Troubleshooting mentions burned out lights ... I think they are saying that once a light burns out, that voltage is increased to other lights and burns them out too
Transformers don't have a reset button.
SOURCE: I just purchased Malibu ML 600 TW transformer, and
Malibu website
Malibu manuals
The power pack has a humming sound >> put your ear close
Plug in a hair dryer on same plug to see if you have power
Check the GFI tripper in bathroom and kitchen
Plug power pack directly into receptacle (no extension cord)
It is hard to believe you got every light wrong >> the light connections are pretty fail-proof today
1) You can test the transformer by rotating manual override counterclockwise >> that's the on-off switch
2) You can test transformer by seeing if clock dial rotates with passing time > the clock must rotate
3) You can check if wires have power > disconnect wires > use another wire to scratch across both terminals to see if there is a spark
4) Did you put the red-and-black tripper pins on the dial? Red = ON Black = OFF
5) I think you forgot to set the time of day correctly
- put in tripper pins.
- rotate center dial clockwise to present time
- now, rotate dial two more full rotations and come back to present time
If the dial will not rotate or transformer does not have power, then the transformer is defective.
SOURCE: Malibu ML88T low voltage transformer w/ black
Open following for Power Pack troubleshoot checklist and warranty information and other tips to keep power pack working
longer:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html
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