Question about Intermatic Malibu 300W Power Pack Transformer ML300RTW
I have a Malibu MT600TW transformer which is not working. When it is plugged in and turned on, and I place a voltmeter across either of the A-B terminals, I get no voltage reading. An ohmmeter measurement seems to show that the A-B terminals are connected, which I assume is a problem. Could this have been caused by the terminals getting wet or something?
Testing ohms across A and B will read open circuit through transformer coil.
Testing DC voltage across terminals A and B should read 12 volts DC, and nothing less.
Transformer should make humming sound when working.
Test that receptacle has power and breaker is not tripped.
There are no repair parts for power packs, but they come with 5 year limited warranty.
For more information on Intermatic/Malibu power packs showing troubleshoot steps, replacement trippers, useful links, warranties and tips:
Posted on Mar 05, 2011
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