Is My Powermax Dead?
I bought a Powermax PM3 a few years ago. The trailer has no battery, but it sat on shore power for a few years, until a couple years ago when the trailer ha dto be moved to a storage unit, and after that it only got used occaisonally. This week, when I plug into shore power, everything works fine for about 5-10 minutes. Then the lights would start flickering.
I pulled the unit after making sure it was getting 110V AC (it was). On the bench, when I first plug it in it puts out 13.6V as it should. Within a few minutes, the voltage becomes unstable, jumping from 4.5 to 5.9 to 14.1 to 9.3 etc. The unit also starts making odd hissing and clicking noises.
I opened the case and found the noises seem to emanate from a large object wrapped in yellow plastic film with two large wires going into it. Capacitor? Resistor? Got me.
Any hope for this unit, or should it go to the recycler?