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Richard WilkinsonAug 3, 2025
How to troubleshoot no power on Bose PowerMatch PM8500 Amplifier?
- HHeather GilbertAug 3, 2025
If your Bose Amplifier has no power, try the following: * Turn on the power switch. The Clip, Limit, and Signal LEDs should light up for about 15 seconds, after which the amplifier should be ready. The LCD screen will show the firmware version for about 10 seconds, then switch to the operating screen. * Check the power cable and make sure the retaining clip is in place. * Check the mains circuit.