General Garmin Amplifier Troubleshooting

My Amplifier isn’t working.

- Check to see which, if any, LED indicator is on.

If neither indicator is on, first check your inline fuse in the power cable near the battery. (If blown, replace with the same rated fuse.)
Ensure the earth/ground and power connections on the terminal block of the amplifier are clean and tight.
Ensure your remote wire has a good connection at the amplifier and head unit/source.
Check the amplifier fuses. If blown, replace with the same rated fuse, but if they fail again you may have a problem in your amplifier circuit. Do not replace with a higher rated fuse as this could result in major damage.
If more than two amplifiers are linked ensure a 30Amp relay is being used going to the amplifiers.
If the problem persists please consult your authorized dealer at your place of purchase.

If the red protection LED is on it may be that the amplifier has gone into thermal protection (overheating).
Let the amp cool down for 15-30 minutes and try again.
If the amp still goes into protection, it could be the result of a speaker/sub problem. To check this, disconnect the speaker/sub from the amplifier and turn the amplifier on. If the power indicator comes on and stays on, that would indicate that you have a problem with your speaker/sub.
If the protection LED comes on you may have an internal problem with your amplifier.
There could be a fault that needs professional diagnosing and servicing.
If the problem persists please consult the authorized dealer at your place of purchase.

This can indicate that the amplifier is not receiving a signal from the head unit/source. You can test the amplifier with an RCA to 3.5mm audio cable. Connect the RCA's to the amplifier and the 3.5mm jack to a media source with a 3.5mm connection, play the music directly from this source to the amplifier.
Check your settings.
Check the wiring connections on the output of your amp and the sub-woofer.
You may have a problem with the output circuit of your amplifier.
If the problem persists please consult the authorized dealer at your place of purchase.