Have a Crown amp xs 1200 that is in fault mode and wont reset what can i do to fix this

You may have a bad amp a fault could be a output trans or a speaker that is shorted the plate amp may need to be fixed!

Same as with any MIL Lamp or check light, you
get on your dash,you check for codes, to see if you have
a system fault,diagnose the fault & make the repairs required

Folks have to give up this stuff about resetting things

If ANY light stays light on your dash after the motor is running
or your driving-- you have problems

Clearing-- NOT-- resetting anything- is NOT- a fix for any vehicle issue

It's very likely that the main power amp section has a faulty part on it that is presumably causing an overload. You should check the devices on the main heat sink of the amp section.

Hello,

A common problem for these is bad capacitors in the power supply, Remove the back from your Amplifier and look at the power supply on the middle section of the amplifier

You will see bid round capacitor that are bulged / domed shaped on top usually these are valued any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same capacitor rating but a higher voltage.
Hope this help in solving the problem....

First confirmed if your speaker and wire are not shorted. Once it is in good condition then it has a big chances that you have a faulty output IC. This is quite technical and I've advice to send it to qualified service center to isolate the problem. This is fixable.
Thanks for using fixya.

Hi.

The amp does not go on protection only because of wiring or power source problem , but also and mainly when there is an internal fault.

Protection is started whenever an out-of range voltage value is detected from the controller circuit.

Protection can be triggered from a burnt final IC or from a speaker wiring problem.

Since you have ruled out speake, wiring and power source problems, then this Amp is probably defective

If the Amp works fine on a different vehicle, then protection mode may start either because speakers impedance is not within Amp specs, or because the amp has a too big power draw. In this last case the problem is fixed installing a capacitor on the Amp 12V line.

Regards.

Ginko.

if ur output power amp is defective u will have that problem - meaning the moment u connect load across it it will go into circuit protection to limit/stop excessive output current. make sure the speaker terminals are connected to +/- output terminals. in bridge mode use only channel 1 and that too with 4 ohms speaker only otherwise amp will clip. considering all connections are okay if it still clips when speaker is connected, u have a faulty power amp section. this the way ur amp is designed

I have a pair of these. Best audio thing I ever did. One amp as the the crossover is built into the amp. If you can find the compatible dual 18s then you'd need a second amp. Recently read a spec that they drop to 20 hz at 10 volts. So when you turn up the volume they rock with the bass truly showing a peak of their capability. These are just amazing. I originally used a crown xri4000. Just bought a Nad T 877 HT and when run only in stereo with QObuz, pretty incredible. Not the final purpose of this amp though. I may use the line outs to integrate the Crown Amps. Still getting an idea. So One powerful amp. You won't blow these out.

it is worse do you know why it problay be the xs 700

Crown CE amps have a very decent service manual that give test points to check for faults. In these amps protect mode is a good sign that major components are not burnt out ie, (Transformer).
With a good Digital volt/ohm meter most common circuits can be checked against the service manual specifications. Usually in these amps the Zener Diode or Capacitors are the first to burn out along with cooling fans. That would be a good place to start.
Respectfully, Muzick