Question about Malibu ML600TW - Low Voltage Power Pack - 600 Watt - With Timer and Ground

1 Answer

My 300 watt Malibu Power pack sticks and won't turn on automatically, but will go off automatically ok but it sticks trying to turn on

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Open following link for ML power pack troubleshoot, plus tips to keep power pack from burning out, trippers and warranty:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

If clock motor has gotten weak, then buy cheap plug-in timer, set power pack to override, and then plug power pack into cheap timer.

Upvote the help.
And 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.

Posted on May 26, 2011

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Why won't my ml44t transformer turn the connected lights on or off?


1) Copy following link for installing and troubleshooting power pack
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

2) Test outlet for power.
Temporarily run extension cord from another outlet.
Connect wires to terminals a and b ... make sure no insulation is under screw plate.
44 watt power pack will operate 44 watts of low-voltage lights (12Volt).
If 300 watts of lights are installed on line, then lights probably will not light up.

Mar 01, 2013 | Hardware & Accessories

1 Answer

I replaced an old Malibu 300 watt powerpack with a new digital 300 watt Malibu power pack and when I turn it on it runs for about a miniut and then shuts down. I have 15 11watt light on it, the same as the...


300 watt power pack should have 300 watt load.
You have 165 watt load.
Copy following link for general tips to get Malibu power pack to last longer.
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Problem might be the photo eye.
http://waterheatertimer.org/images/Malibu-8100-9045-01-large.jpg
Rotate manual dial to ON position and see if lights turn ON.
Keep in mind the digital power pack has photoeye that is light sensitive, and must be exposed to dark light to activate.
For timed functions. Rotate manual dial until it points at timer. Press clock set function button, and use up-down buttons to set current time. Press timer ON button, and then use up-down to set ON timer. Then press timer OFF button , and use arrow keys to set OFF time.

This product has 1 year limited warranty, contrast with old-type analog power pack with 5-year warranty.
Malibu does not even post a manual on their site, which might have troubleshoot section to illuminate why your system has problem,
http://malibu.brinkmann.net/customer_service/owners_manuals.aspx

Nov 29, 2012 | Hardware & Accessories

1 Answer

Malibu timer motor won't turn on, but it turns off ok. I want to replace the timer unit, where can i get one


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

Aug 15, 2012 | Malibu ML300RTW - Low Voltage Power Pack...

1 Answer

I have model ml600twsn 600 watt intermatic timer for my outdoor lights.Recently I have been unable to set them to turn off an on automatically. I can manually. what should I do?


You have malibu-type low-voltage transformer.

There are no repair parts for this type of timer, and nobody reports being able to fix timer once it goes bad.

1) "Harry" wrote to fixya with a work-around: He bought cheap plug-in timer, set malibu timer on override, and plugged malibu into wall timer.

2) Harry also said that his timer has 5 year warranty, and he was negotiating for replacement.
Contact Intermatic:
http://www.intermatic.com/customer%20service.aspx

3) Buy another timer:
http://www.amazon.com/Malibu-Intermatic-600watt-Professional-Transformer/dp/B000PGPO50

4) I found tips for next power pack that might save money:
The reason I add tips now, before power pack needs replacement is some fella wrote fixya.
He bought 500 Watt power pack to replace 300 Watt > thinking bigger was better.
Power pack burned out. Here's why:
a) Match wattage of bulbs with wattage of power pack
-15 each X 20 watt bulbs = 300 watts, so install 300Watt power pack
b) Installing a 500W power pack on 300W of bulbs will burn out bulbs and power pack.
c) Replace bulbs as soon as they burn out or other bulbs will burn out and power pack will burn out.
d) 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

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

Jan 27, 2011 | Garden

1 Answer

How to troulbe shoot my 300-Watt Power Pack/Timer. it doesnt turn on but it does turn off on time. had this product for 4 years and just now started having problems with the timer.


'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

Dec 03, 2010 | Malibu ML300RTW - Low Voltage Power Pack...

1 Answer

The timer feature of my Malibu 300 watt power pack just stopped working. The lights can still be turned on/off manually. Anything I can do other than buy a new one?


Unfortunately when the power pack stops working there is no solution.
Your power pack has electricity so that is not the problem.
The bulbs turn on, so the bulbs are ok.
That means the power pack has malfunctioned, and needs to be replaced.

I did find some tips to help folks preserve their power packs:
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

Nov 12, 2010 | Malibu Intermatic Inc. ML300RTW 300-Watt...

1 Answer

The transformer will work if I manually turn the dial. The dial will not automatically turn anymore.


If the bulbs turn on when you manually rotate dial, then the power pack has electricity.
A lot of people ask for replacement Malibu tripper pins on Fixya, and it sounds like your trippers are working fine.
If clock has stopped rotating, that means the power pack has malfunctioned, and needs to be replaced.

I did find some tips to help folks preserve their power packs:
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

Nov 11, 2010 | Malibu ML600TW - Low Voltage Power Pack -...

1 Answer

I need instructions for setting the timer


Malibu product manuals
http://www.malibulights.com/customer_service/owners_manuals.aspx

Manual for 300 Watt power pack
http://malibulights.com/docs/pdf/8100-9300-01.pdf
Read cautions

Tips
300 Watt power pack requires sum of bulbs to equal 300 Watts
If you use 10 - 20 watt bulbs that is only 200 Watts so you need 200 Watt power pack

Replace burnt out bulbs immediately or other bulbs will burn out and shorten life of power pack
When working on bulbs, unplug power pack so it does not shorten life of power pack

Set Malibu Timer:
Red trippers are ON
Black trippers are OFF
Place trippers on dial at ON OFF times/ AM and PM

Set current time of day:
Plug in power pack
Trippers are installed
Rotate dial counter-clockwise to current time, say 9 am
Rotate dial 2 more revolutions and then return to current time
That's it

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Oct 12, 2010 | Intermatic Malibu 300W Power Pack...

1 Answer

Timer will not tirun on the lights, it stops when it gets to the time to turn on.


Malibu home page
Malibu manuals

Try the manual override >>> un-plug power pack and try loosening manual override with WD-40

It sounds like the clock motor is unable to push the manual override
Don't continue to run power pack or the clock motor will burn up or break a plastic gear

If manual override will not work, or clock will not trip on lights, you need a new power pack
Power pack size chart and wire length

Be sure to buy same wattage power pack as you have
The 300 Watt unit is made for 15 - 20watt bulbs (15 x 20 = 300)
If you buy 600 Watt power pack and hook it up to 10 - 20 watt bulbs, it will burn out the bulbs
Manual also says to replace burned out bulbs ASAP or other bulbs will burn out.

Oct 09, 2010 | Malibu Intermatic Inc. ML300RTW 300-Watt...

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