Question about Malibu ML200RT - Low Voltage Power Pack -200 Watt - With Timer - Plastic Ho

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I need a cover for my ML200RTW transformer. Any suggestions Steve

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You posted under Intermatic-malibu timers.
There are no parts for power packs except trippers.
Improvise by cutting off bottom of 1 gallon plastic bottle and spray paint black. Or buy plastic food storage container and do same.

For more information on Intermatic/Malibu power packs showing troubleshoot steps, replacement trippers, useful links, warranties and tips:

Posted on Mar 20, 2011


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1 Answer

Mitsubishi LT-20

Transformers are safety parts and should only be replaced with types approved by the makers of the device. Contact Mitsubishi for information on where you can get a replacement.

Remember inproper replacement could result in fire and death.

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Flyback transformer

Throw the set in recycling and buy a new set, its not worth repair, the part would be close to 100 bucks if it was available

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Intermatic ml200rtw timer not working. transformer works.......when using the by pass switch the lights come on

Easiest thing might be buy cheap plug in timer, set power pack to override and plug power pack into cheap timer.
Power packs come with warranty if you have receipt.
There are no replacement clock modules:

Aug 21, 2011 | Garden

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Owner is gone, i need to readjust the watering times,and need a copy of the manual. could be ml121rt or ml200rtw, all look the same as far as dial and top opening lid in the pics

Open following link for troubleshoot steps that show how to set ML series timers, with links to Malibu manuals, warranty information, tips for preserving and setting up power pack:

Add a comment for more help.

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.

Jun 11, 2011 | Intermatic Malibu 300W Power Pack...

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My ML200RTW isn't generating 12VDC anymore. It receives the 120VAC signal and the timer works (it hums and keeps the time). I can manually activate the timer switch, but no matter what position I put...

Bad news.
There are no repair parts for broken power pack.
Terminals A and B should test for 12 volts, as you have determined.
Terminals C is for photo eye operation only.
If transformer hums, that is signal that it is working.
It might be possible to open case and somehow find the copper wire from the transformer that will produce 12 volts again, but nobody has reported being able to fix power pack.
Please add a comment and say if you are able to do this successfully.
ML series power packs have 5 year limited warranty, and you usually need the receipt.

Open following link for troubleshoot steps plus warranty links, money-saving tips for next power pack.

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.

May 26, 2011 | Intermatic 200W Power Pack & 12v...

1 Answer

Have an intermatic 200w power pack with a broken timer. Is there something I could do?

they have a 5 year warranty. just go to and send them an email. or call.

Jun 09, 2010 | Intermatic 200W Power Pack & 12v...

1 Answer

How do I do the wire connection to the transformer? i have a single wire leading to 2 up lights. this is a Malibu 200 watt with 3 connectors on the back.

I'm assuming that you have a cord that has 2 leads, similar to a black extension cord. Connect one lead to the farthest one on the left screw, skip the middle screw, then connect the other lead to the right screw. Why they did this might be because they used a standard terminal block on all their product and were too lazy to take out the middle screw.

Jun 06, 2010 | Malibu ML200RTW - Low Voltage Power Pack...

1 Answer

Transformer problem

Malibu power pack has to match total watts of bulbs

15 bulbs each 20 watt = 300 Watt power pack
10 bulbs each 20 watt = 200 Watt power pack

Mar 01, 2010 | Malibu ML200RTW - Low Voltage Power Pack...

2 Answers

No voltage to thermostat.none to condenser vltage.main voltage to con.ison.

Check for proper voltage to the unit , (generally 110VAC) check the transformer secondary for approx 24 volts. Verify the door switch is operating properly and that the door switch engages when the cover is put back on. if all of this proves good then check the wirtes going to the thermosta and the condenser

Jul 12, 2009 | Heating & Cooling

1 Answer

Need transformer for Hobart Cybertig CT300

Hi Steve
my name is Rob

The cyber tig brand covers a lot of ground some of it older than me!

critical questions
do you have a parts list?

can you get from the machine
Model number
Spec number

do you have any drawings?

if these are all no all is not lost.
I can get a transformer custom made. i would need some details from the old unit.
Please let me know.

Rob Lee

Jan 29, 2009 | Hobart Welders Champion 500433A Factory...

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