Apu constantly cycling on and off

Thread starter #1
So I've been in my truck for about 2 months. I just came off my first home time(about a week).

Of course I made the rookie mistake and never checked to see if my TK Tripac was on sentry mode before I took my week off.

So I came back to a very dead truck. I jumped the truck and ran for a bit. At first the apu wouldn't start at all. Now it runs but only for a few minutes then shuts off for a minute and then cycles right back on.
The control unit doesn't show the error light. It just runs then shuts down then starts right back up.

I was just hoping if anyone had idea of what this could be to maybe avoid a trip to TK.
 

mndriver

curmudgeon extraordinare
Supporter
#2
Likely you've got a bad battery. It's sensing the voltage and needing to charge.


That's where I'd start looking.
 

ironpony

Professional Pot-Stirrer
Supporter
#3
Likely you've got a bad battery. It's sensing the voltage and needing to charge.


That's where I'd start looking.
Agreed. Load testing the batteries is where I'd start, especially in a truck that's new to you.
 
Thread starter #5
Ok will start there, thanks for the help.
 

Injun

Rabid Squaw
Staff member
Supporter
#6
If one battery is bad, they're all bad. Don't get roped into just replacing one.
 
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