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  1. RickOzone

    Ultra-1000AP UPS troubleshooting

    Also check the MOV's on the output are not shorted. They are about the size of a quarter and blue. The resistance across them should be high. They are labeled RV1, RV2 and RV3.
  2. RickOzone

    Ultra-1000AP UPS troubleshooting

    I have a similar problem with my Ultra Power 1000AP UPS, except it stays on when plugged in but frequently shuts down. If I pull the plug it shuts down after one second. If I try to start it, with the power plug out, then it beeps and relays click and then shuts down. I called the service...

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