Question about Intermatic Malibu 300W Power Pack Transformer ML300RTW

1 Answer

Lights will turn on and off manually only

Transformer seems to work OK. Lights will turn on and off manually but clock is not turning anymore. Landscaper installed over 1 year ago. He also installed it in the garage. Is this considered "outdoors”? Box says Intermatic Heavyduty cannot see any numbers but casing is plastic, otherwise looks like this clock. Questions in short - does timer need to be replaced? Does placement need to be changed?

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  • Anonymous Mar 24, 2014

    Timer lights 1 & 4 are on constantly & nothing else works. I've tried unplugging it but still no change. I bought it from garage sale (1 year ago) with no manual, it's been working great up til now

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  • Master
  • 623 Answers

Just checking, still plugged in, fuse or circuit breaker not tripped that provides power to it? If you can turn it manually, and the dial does not turn when powered up, look for a small on/off switch, other than that, maybe it does need replacement, but they usually last longer that a year, but I have had some timers that just quit working on me too.

Posted on Apr 30, 2010

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1 Answer

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The clock motor gets weak and sticks on the tripper and then stops working.
Possible solution: Some people report they disassembled clock motor, cleaned the gears and added a bit of vaseline or white grease to gears because they get dirty.
Then afterward, you might try duct tape to seal unit from dust
Others report they got the clock motor apart and didn't mark parts and take photos along the way, and forgot how tiny gears went back.
My experience with clock motors, and motors in general, is when they slow down, they overheat and don't last much longer.
There are no replacement clock motors for ML series power packs, which is shortcoming since Intermatic makes replacement clock motors and modules for many of their products.

Work-around: Set timer to override, then plug power pack into cheap wall timer.
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html
http://waterheatertimer.org/Intermatic-trippers-and-parts.html

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Is that a question or a statement?

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Sony-ICF-C212-Clock-Radios-manual/id/267ag023/t/2/

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Hi lillady909,

I'm Harvey the Master Plumber.

Your problem is: you cant get the lights or fan to turn on anymore is there a reset switch

First check the circuit breaker. If OK then check the transformer in the unit. It's next to the fan motor. If no power on the high side then you have a loose or broken connection. If you have no power on the low side the you have a bad transformer.

Feel free contact me again!
Please give me a rating here at fixya.com before you sign off
Thank you,
Harvey your Master Plumber

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