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defective UPS

Discussion in 'Troubleshooting and Repair' started by canactech, Aug 8, 2012.

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  1. canactech


    Jul 7, 2009
    Hi everybody.

    I have a problem with a Toshiba 1400S plus series UPS. Following a power outage, the unit give an alarm of overheating. The unit was closed for at least 8 hours and the problem came immediately as soon as I restart the UPS.

    I've checked the Thermal guard (ohd3-90m) that is supposed to closed around 90C and at room temperature it's open as it could be.

    Does anyone have some ideas or even the service manual for this unit?

    Thank you.
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