Question about Infinity 475A Car Audio Amplifier

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Protect Mode Whenever it's cold my amp stays in protect mode for a while until my car heats up. It's an 06 taurus. This didn't happen until the weather got cold. It hasn't left protect mode for a few days. I know amps perform better in the cold which is why I'm confused. Maybe it's possible that the car is drawing too much power to heat the car, not leaving enough for the amp. It's not a huge amp though so I don't see why this would happen. I asked a Best Buy installer and he said he hadn't seen the problem in 10 years of installation. Any ideas?

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Hello,

first I would advise you to tighten all of your ground and power connections. Then I would suggest that you expose the circuit board and start the amplifier warm up process, once the amp comes on I would use freeze spray to cool down various components in an attempt to find the component which has become thermally sensitive. Once you find the component I would suggest replacing it and the putting the cover back on the unit.

I hope this helps,

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Posted on Dec 09, 2008

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