Can a low voltage garden light timer be repaired?

Be sure to use a surge protector to plug the new on into.

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Get yourself some stock 12v transformers and either an Intermatic timer (the good ones) or a a couple of cheap plug-in timers (I saw some in my local 99 cent store the other day). Hell, just bypass the timers on the Malibu units and plug'em straight to the timer. BTW, check to confirm the absence of photocells. I've spent too much time and trouble redoing evil stuff (e.g. photocells control current to timer) to make that mistake
again.

Hello slong

Unless your faulty Malibu transformer/timers are under Warranty, throw them into the recycle/scrap bin.

The cost of repairs would be far in excess of cheaper replacements.

1. Use a surge diverter - very important
   
2. Use stock transformers (cheap)
3. Use standard timers (also cheap)

Please note I'm not a cheapskate, just an efficient user of the money supply.

Enjoy your replacement set-up, which should operate your garden lights for many years, without any troubles.

Kind Regards....