Question about Intermatic 24hr Outdoor Timer

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Can you help me troubleshoot a Intermatic Landscape Transformer - 88 watt - ML88T?

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The following link carries ML series power pack troubleshooting, plus links to trippers and manuals, plus information about 5 year warranty.

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Posted on May 21, 2011


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Posted on Jan 02, 2017


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I need instructions for setting my Malibu ML88T

Do you mean the Intermatic Malibu ML88T power pack? Intermatic has most of their manuals on their support page: . Since the ML88T is a discontinued model, click on the link on the right for Discontinued Product Documentation then on the power pack link. The ML88T support page is: . The direct link to the manual is .

I hope this helps.

Cindy Wells

Mar 20, 2017 | Malibu Hardware & Accessories

1 Answer

We have a Malibu 300 low wattage transformer for 13- 20 watt landscape lights.

Try connecting a lamp (correct voltage, etc) directly to the transformer. Most likely, the wire from the transformer to your lights is broken... The reset button can't reset anything, if there's nothing wrong there.

Jun 16, 2016 | Intermatic Malibu 300W Power Pack...

1 Answer

Does Malibu still make a model number ML500TW timer transformer

Intermatic/ Malibu series lights are available 44 watt, 88 watt, 100 watt, 121 watt, 200 watt, 300 watt, 600 watt, 900 watt.

None of the other brands sells 500 watt either.
Kichler sells 300 and 600 and 900Watts
Paradise does not have 500 watt
Malibu brand does not carry 500 watt
Portfolio does not carry 500 watt

Apr 16, 2013 | Hardware & Accessories

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Where can I get the operating instructions for a Malibu Low Voltage Transformer, model ML88t?

Manuals for existing products
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I don't see your specific manual, but the operation might be similar to the ones shown here ... it could be that Malibu repeats the same instructions in different models

Oct 14, 2010 | Malibu Intermatic Inc. ML121RT Low...

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Low voltage tranformer is inconsistent

Check for loose connections in the plug. Also check for continuity in the cord. Use a multimeter and bend the cord along its entire length checking for any lose of continuity as you go. Check the fuse holder and fuse for corrosion. I am not familiar with this unit but, it also may contain a PTC thyrister or overtemp switch that is setting and not resetting till it cools down. Sorry I have nothing else conclusive to add. Cheers

Jan 29, 2018 | Intermatic 600 Watt Low Voltage...

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