Amp heats up quickly, melts fuses and shut down after a while
We just installed this amp and all of the channels work fine but in a short period of time and even w/o the sub channel connected, the amp heats up very quick and it melts fuses ( it burned one fuse, but the other one melt but continued working). And after a while it turns off. Hope someone can help me.
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You have a dead short . Disconnect the battery , set your volt meter to read ohms and send a current from each position on the ignition switch to the fuse block where the fuse is blowing . You should be able to trace the problem quite quickly .
You have a dead short across that fuse, The end opposite the battery will probably show a ground rather than a resistive load. You are going to have to find that short and fix it. A dead short on a 60 Amp fuse is a heavy load. That fuse is probably preventing a fire or melted harness wires.
You're quite right when a fuse blows there's a short. The short will be in either the power supply section, or the main amp. You will be looking for a semi-conductor of some sort. A multi meter on the ohm setting will track it down quick if it's a transistor. As the meter scale will be just like you have touched the probes together. Follow the circuit back from the fuse. Check any part that you suspect. If the sub uses an IC power amp, it could be a strong suspect!
i had the same problem with my dryer and i installed the wrong thermal fuse for gas dryer which calls for a pink thermal fuse in which i installed and it works fine also check the lint in the front of your dryer. also my dryer which is the same make as yours seems will run on the fluff cycle until i replaced the right thermal fuse. my dryer run exceptionally hot and eventally shut down and it only run on the fluff cycle for any length of time.
The output device on that channel will have blown. Look at the output device for that section by following the leads back from the plug, Anything with a heat sink on it is the best bet for the fault.
The protection circuit is most likely shutting down the amp because of heat. When the amp shuts down, does it feel hot? If not, then further investigation into the protection circuit will be necessary. This is not a problem that is likely to be diagnosed remotely as measurements will be required internally once the amp has stopped working. Check the sepaker wires for shorts that will cause the amp to work extra hard (generating extra heat). Other than that, you will need a servicer to diagnose further.