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Anonymous Posted on Apr 24, 2012

Problem with Malibu Landscape Lights Transformer ML900TW

We are having a problem with our Malibu landscape lights (1301-9300-80) and not sure what to do. They used to come on with the timer but lately they don't. I have to manually reset the gcfi sometimes pressing 5 or more times before the transformer will stay on (you can hear the hum). Sometimes when pressing the reset on the gcfi, it will hum for a second and then turn off so I keep pressing until it stays on. Last night, I manually turned on the lights and they stayed on for about 5 mins and then went off. Any ideas on what to do? This has been happening for only the last month or so. The timer works fine but the gcfi just trips. Do I need to replace the transformer box or is it a power issue and more power is needed? Or maybe need to replace the gcfi? I'm not a professional electrian but decent w/ home improvements...just not sure how to trouble shoot this and can't find anything similiar solution online. Thanks for your help!

  • Anonymous Mar 27, 2013

    Thanks Bob, this solved the problem and my apologies for not responding sooner. It was just a simple troubleshooting and turned out to be a bad gfci! Thanks again!

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  • Master 565 Answers
  • Posted on May 03, 2012
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Use an extension cord to plug the transformer into a different "test" GFCI receptacle, if it holds on the test GFCI you know that the GFCI for the transformer needs replaced. If it doesn't hold, then the transformer is on the way out and should be replaced. Sometimes motors and transformers will "leak" current and still work, but not trip a regular circuit breaker. A GFCI that is doing it's job will catch it though. Don't force a GFCI like that...you can wear it out prematurely.

  • Anonymous Mar 27, 2013

    Thanks Bob, this solved the problem and my apologies for not responding sooner. It was just a simple troubleshooting and turned out to be a bad gfci! Thanks again!

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Gene Haynes

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  • Master 5,391 Answers
  • Posted on Jun 02, 2012
Gene Haynes
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Open following link for Malibu troubleshoot resources
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html
Open following link for installing and testing GFCI outlets:
http://waterheatertimer.org/How-to-wire-GFCI.html

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

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Anonymous

  • 1 Answer
  • Posted on Aug 04, 2010

SOURCE: I have a Hampton Bay 300W power supply for outdoor landscape.

"The wire with a light" is a not light bulb. That is your photocell. At dark will turn your system on if you select thta feature.

I have tha same power supply. In my case "check circuit" light is on. I need a manual so I can troubleshoot. Any Ideas?

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Anonymous

  • 565 Answers
  • Posted on Nov 14, 2010

SOURCE: I need to stand 2 poles up on either side of my

A 10 foot stick of 1 1/4" or so of electrical EMT conduit would probably work:
http://www.homedepot.com/Electrical-Electrical-Boxes-Conduit-Fittings-Conduit/h_d1/N-5yc1vZ1xg4Zbohl/R-202068042/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

The conduit is easily driven into the ground using water. Just pour some water on the ground and start working the conduit up and down in the same spot, add more water as needed until the conduit is in the ground 2 or 3 feet.

Purchase one 1 1/4" EMT connector to fit on the top end of the conduit. That connector can be screwed into a 1 1/4" galvanized floor flange from the plumbing dept.
http://www.homedepot.com/Plumbing-Pipes-Fittings-Valves-Galvanized-Pipe-Fittings-Fittings/h_d1/N-5yc1vZ1xg4Zbuue/R-100183709/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

Drill the (1/4"dia. or so) 16 holes around the perimeter of the flange for each strand. Maleable iron is easy to drill.

The conduit should be fairly secure by itself but you could use small diameter steel guy wire (14 ga. or so) and some tent stakes for added support. 4 should be enough.

Anonymous

  • 1 Answer
  • Posted on Dec 05, 2010

SOURCE: I just bought a Stanley Outdoor Power Center. I

Make sure that you do not have a light shining in close proximity to the photo cell. I had the same problem, adjusted the position and problem was solved.

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Related Questions:

0helpful
1answer

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.
0helpful
1answer

Where can I buy a replacement photocell for my Malibu 300W low voltage landscape lighting transformer?

You can buy the Malibu Photocell Low Voltage sensor on eBay. Go to eBay and search "Malibu Photocell Sensor" and you should see it. Or search eBay item number 371829265599
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How do you program a da-150-12w-1?

150 Watt Transformer TDC Power DA-150-12W-1 - eBay

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eBayNew, Free Ship, TDC Power DA-150-12W-1 Low Voltage Transformer, 12v 150watt Max in Home & Garden, Yard, Garden & Outdoor Living, Outdoor Lighting ...

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Da-150-12w-1 Manual ' downloadthingsfast.com


0helpful
1answer

Landscape lighting transformer hums only when controlled thru photo-cell, and not when powered directly.

1) Copy following link for Intermatic/Malibu power pack photo-eye instructions, general troubleshoot, manuals, replacement trippers, and tips to prolong life of power pack:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

2) Brand and model of transformer and photo eye are unknown.
Wiring changes are unknown.
Volt rating of photo eye is unknown.
Wiring of photo eye is unknown.

3) Add a comment including details, and attach photo, after reading information on link above, for live response Jan 2013

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Jan 01, 2013 • Home
0helpful
1answer

We have an outside landscape light time that has quit working. Model pb115m1. Do you carry these?

Fixya does not sell timers or parts.

Timer system is not identified for certain.
If landscape system still turns on-off with override switch, then you can work around and buy cheap plug-in timer, set landscape to override, and plug landscape system into cheap timer.

Open following link for low voltage transformer resources:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Add a comment for more help.

Take a moment and rate answer:
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.
1helpful
1answer

When i plugg in my power pack it instantly tripps the breaker in my power box. i un plugged it and disconnected the wires it worked fine since june when i bought it. iturned it off over dec. because of...

Guess is that the primary winding on the transformer (in the box) has a shorted winding. No fix. Replace the transformer.... and be sure that the load (total wattage of the lights being serviced) does on exceed 90 percent of the power pack capacity.

2helpful
1answer

Malibu landscape transformer

I discovered that I hadn't turned the manual switch to off on the one that wasn't working properly.
Now they both work fine. The instructions that come with the Malibu Transformer is not easy to understand and it does not go into enough detail. There isn't a trouble shooting section which would help.
1helpful
1answer

Malibu landscape transformer

If it is keeping time try moving the stops. If it is not keeping time the motor is probably burned out. These transformers don't have a lot of serviceable parts to them.
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