Tripp-Lite OmniPlus1000LCD

Sep 13, 2025 Last reply: 10 months ago 6 Replies

This a newer UPS which has gone through only 1 battery. New battery is not recieving a charge; diagnostic screens not working with fully charged battery. No visible component failures. I don't have sufficient skills to do much more without a schematic [or probably even with a schematic]. Any hint on where to troubleshoot?



Thanks.


I'd start by getting a manual. Downloads/Tripp-Lite-Owners-Manual-889464%20(2).pdf

Not much information, but it does say something about "...press and hold the power button until the alarm..." To my way of thinking that's rather unusual, I don't usually hold buttons until something makes noise.

Beyond that, maybe look for fuses inside? The UPS units I have are absolutely dead unless connected to a battery.

hth,

bob prohaska

How long has the UPS been operational? If it killed "only" one battery, I would guess 5 years.

I keep finding bulging electrolytic capacitors in such UPS's. You can visually see the bulging electrolytic capacitors but an ESR tester will catch more of the smaller electrolytics. Examples:

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This might help: "p-lite SMART1000LCD not charging, no emergency power!"

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Yes, that procedure worked in the past. No joy now. Thanks!

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Jeff,

Yes, maybe 5 years old. Very clean.

I am always pleased to find a bulging capacitor. These are flat and virginal. :( I will dig out my ESR meter but am not optimistic.

The badcap forum string did mention fragile relays in Tripp-Lites. That is a promising lead I will pursue.

Thank you.

It's interesting that the page at

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a 3 year warranty. Seems like pre-emptive defense, as if they know they have a problem.

I wonder what might happen if you innocently asked for tech support troubleshooting the "recent" purchase.

Admittedly it's a long shot, but there's little to lose. Even at five years, some amount of support is owed.

Good luck,

bob prohaska

For closure,

This particular Tripp-Lite gets some bad reviews.

Someone on You Tube had success reflowing the IC leads. I didn't. Caps tested good. I was then clumsy and destroyed one of the four MOSFETs in a nice ball of fire and smoke. Lacking sufficient incentive to replace the MOSFET, I will chalk up to experience. Thank you both for responding.

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