20 Most Recent Malibu ML300RTW - Low Voltage Power Pack -300 Watt - With Timer and Ground Questions & Answers

Malibu ML300 has 120 volt input and 12 volt AC output They make a photo eye for the timer... wiring is changed a bit... will work on ML300 if timer has A-B-C wiring terminals http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#wire You can use a 120 -> 12 volt ac transformer that is rated for 300 watts... and connect in-line photoeye on the 120 volt side. http://waterheatertimer.org/How-to-install-and-troubleshoot-photo-eye.html http://waterheatertimer.org/Reverse-photo-eye-so-it-turns-on-at-daytime.html Gene Water Heater Timers Save Money If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Short across the wire. Replace wire: http://waterheatertimer.org/Malibu-power-pack-stopped-working.html Gene Water Heater Timers Save Money If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Sounds like the mechanical timer assembly likely has never been lubricated, You may use a lightweight oil, such as WD-40, to lubricate the timer mechanism.

http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#troubleshoot Troubleshoot on link above Gene Water Heater Timers Save Money If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/Malibu-power-pack-stopped-working.html Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#troubleshoot Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Probably not. Remove trippers from dial...Plug power pack into cheap wall timer http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#troubleshoot Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#install Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#troubleshoot http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#install Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#Portfolio http://waterheatertimer.org/How-to-set-timers.html#one Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Clock motor not sold separately http://waterheatertimer.org/Malibu-power-pack-stopped-working.html Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/Malibu-power-pack-stopped-working.html#manual RTW has ground shield. Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

There is no reset button for ML series power packs: Copy following link for troubleshoot resources, replacement trippers, installation tips and manuals http://waterheatertimer.org/Malibu-power-pack-stopped-working.html Gene h If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

1) Clock motor is worn out, or gears are dirty:http://waterheatertimer.org/Malibu-power-pack-stopped-working.html2) Take apart clock motor and add white grease to gearsSet override to ON, and plug timer into cheap wall timer.Take advantage of 5-year warranty. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Transformers make humming sound.ML300 series transformers make sound.Used styrafoam to separate transformer from contact with building so sound is not carried.These transformers have 10 year limited warranty.Copy following link for general troubleshoot and tips, and warranty information, and trippers.http://waterheatertimer.org/Malibu-power-pack-stopped-working.html If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

The timer module is not sold separately.Malibu has 5-year limited warranty against defects in workmanship.If the transformer still works, then plug unit into cheap wall timer.If the timer dial still keeps good timer, then order trippers.Copy following link for manuals, tips, replacement tripper numbers and general troubleshoot:http://waterheatertimer.org/Malibu-power-pack-stopped-working.html If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Open following link for troubleshoot steps that give full rundown for setting timer plus replacement trippers, wiring, warranty, and tips for protecting power pack:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

ML300RTW instruction manual:
http://www.intermatic.com/~/media/files/intermatic/products/instructions/professional%20lighting/ml300rtw.ashx

http://www.intermatic.com/products/professional%20lighting/low%20voltage%20landscape%20products/power%20packs.aspx

You can buy trippers for Intermatic ML series, but there are no replacement clock motors or transformers.
I don't know if tripper is the problem or maybe clock motor is getting weak, and will stop working.
If timer is not working, but manual override works, then buy cheap plug-in timer and plug power pack into cheap timer.

For information on Intermatic/Malibu power packs showing troubleshoot steps, replacement trippers, useful links, warranties and tips:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

'Harry' wrote to me yesterday with handy malibu information.
1) Power packs come with 5 year limited warranty.
He is contacting Malibulights.com for a refund of some type.
Hope he writes back and says how that comes out.
2) He was having problem and plugged power pack into wall timer, then set timer.
Heh heh, pretty clever: Malibu transformer works, but timer doesn't, so plug power pack into a wall timer!!

That being said, I had same problem with my power pack.
I used blower to remove dirt and sprayed wd-40 and tried to take it apart.
My power pack was getting electricity.
Connections were good where lights tie into wire.
My lights never turned off.

Power pack doesn't come apart.
I turned it upside down thinking water got into timer.
I took it inside and let it warm up.
It still wouldn't work so bought another one.
Then I searched Intermatic and Malibulights.com for answer, but they have no troubleshooting or repair other than check electricity and check bulbs.
Conclusion: when power pack doesn't work, it is broken.
Unless you buy a separate timer and plug power pack into that timer as Harry suggests.

After researching power packs at Intermatic, Malubulights.com, ebay etc, the best I found were tips for next power pack that might save money:
The reason I add these tips now, before your power pack needs replacement is some fella wrote-in.
He bought 500 Watt power pack to replace 300 Watt > thinking bigger was better.
Power pack burned out. Here's why:
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.
http://www.malibulights.com/guides_support/low_voltage_planning_guide/select_your_power_pack