My amplifier is cutting out 30secs after I turn on the power why?

Could be some of the overload protection: low or high pressure,
Check for a clogged filter or dirity condensor or evaporator, condensor or evaporator fans not running.

It is possible that your amplifier is cutting off the power due to a protection in the system. The output or power circuit could have a fault that trips off the protection circuit to worrk. now this is ttricky and might need a lot of power board electronics experience as the fault needs to be traced . You can disconnect the poweer drivers and see if the poweer come on. If so the drivers must be chacked for short and replaced. Check also the speakers for any short and disconnect and check. hope you try. Good day

try to perform powerdrain to your system. inorder to do this, your computer should be turned off. take out the battery and unplug the power adapter. press and hold the power button for 30secs. put the battery/adapter back in. power on the computer and observed if you will be getting the same issue.

If you need further help, reach me via phone at https://www.6ya.com/expert/elixirjose_00375ea24bd8141b

will it run with the fuel cap off if yes there is a vacuum in the fuel tank
caused by a blocked breather
if it will not run with fuel cap off the float valve could be blocked

Are you sure it's not a problem with your head unit? When you mean cut off do you mean the whole amp loses power or power lights stay on but sound just cuts out? If you don't know have a friend turn up your radio if you don't have a remote and whatch the light, power light on the amp. If it goes out then it sounds like a bad ground or the main power wire is'nt large enough to supply proper power to amp. I would check those that I have described first because thats what it sounds like, bad ground or power wire not sending proper voltage. When you turn up the volume your amp needs more power well when you get to a point when you turn it up and amp cuts out or off then it's starving for power or bad ground. Let me know what you find. Also if this helps please rate my help so I can get out of this apprentice status. I have 15 years exp. and 2 degrees in electronics and my business is buying nonworking amps and repairing them then resale them. Thanks

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/mark_b53a7494531bf96d

possible bad turn on relay in amplifier. Service will be required.

check that power amplifier rating(how many watt)must be more than total speaker rating by 20% at least..
exampel:if speakers watts are 100 watt-amplifier watt must be 120 watt.

The best thing to do is to get a amp that is more watts than your subs, not the other way around, speakers are known to handel a lil more power but amps cant produce more power than they are capable of... your ground wire should be thick also, say 6 to 8 mm or so, and its best to put in a cap and an equalizer.
Cheers

Sometimes an amplifier's preamp can't handle certain signals/frequencies at a high gain, so they cut out. Bass guitars are especially prone to giving such a strong signal.
I bought an older, nonworking bass amp recently and fixed it just to find it had the same problem. Best solution is to put a low ohm resistor at the amps input, but if you turn your guitar down to half volume it'll have the same effect: should prevent it from cutting out.

power amplifier circuitry problem,you need a qualified serviceman.