KAC-8401 Shuts off Blue light still lit

Is it overheating?

well if u dont have a meter and some soldering skills
is best u take it to a repair shop
if u want to learn check this site out
http://www.bcae1.com/

sounds like you have the power antenna remote wire (blue) instead of the amp remote wire (blue/white stripe). when you go from radio to cd the power antenna wire shuts off.

is the REM wire from the unit hooked up to the amp?

sound like you have a loose power conection check them all

Either the amp is ad or the sub got shorted? You can check itby disconnecting the Sub and seeing if the amp comes on blue then. If yes, then the sub is shorted. If no, then the amp is shorted. Also chck the voltage AT THE AMP. Make sure that it is above 12 Volts.

Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

your amp may be overheating, or you have it up too loud and the surge protector is shutting it of in fear of damage to your amp.

check your remote wire and check your power and ground, clean all connections with a contact cleaner/rejuvinator (ridox/deoxit).. many times the thin remote wire will develop breaks or conductivity issues over time, i have replaced many of these just in the last few months.

to make sure this is the problem, remove the remote wire and temporarily jump the power wire to power and remote, the amp will always be on at this point, but it should help you diagnose whether the remote wire is the problem or if it is an amp or cabling issue.

hope this helps,
trin

your system is not connected right take it all out and put it all bk in

check transistor of the unit 1 or 2 tans. bad use a tester. the unit is overload protected. replace the deffecteve parts