Robert: the Parallax was pulled last week and the first PD4645 was installed. Everything looked good: green LED was on a steady green, lights and fridge operating. We left it overnight plugged into shore power. When we went in the next morning, the green LED was dim, and there was a distinctive clicking sound...what I thought at the time was the unit trying to turn on, but now believe it was the auto reset breaker continually resetting...and the house circuit breaker for the supply cord had been tripped. I called Progressive Dynamics and Jamison walked me through testing. He determined the unit was bad and should be replaced. I did that and the one I am (was, hopefully) having trouble with is the replacement for the first bad PD4645 unit.
So, this thread starts with the installation of the second PD4645.
This is where we are right now. Thanks to Wally's advice, I discovered the auto reset breaker (which I had never heard of before) and tested it...it was fine. We had pulled out the battery last night and charged it up so it was out when I tested the auto reset breakers and lo and behold, we had AC to DC power. So we started to think it was the battery, even though it was performing beautifully on our recent 3 week bookdocking trip (with 2 nights of hookups.) We checked it and it seemed like we might have a dead cell, so we replaced it today.
We now have it installed, the converter running (yes, I should have reviewed the instructions on the meaning of the green light signals, but in my defense, I was too focused on what had happened to the first unit and afraid it was happening again...silly me!) the green LED is blinking at 3-4 times per second, the fridge is running, the lights and fans work. Dare I say Yay! or will the gods of smugness smite me (or our converter?)
Interesting that in the process we discovered that the insulation on a pair of 14 gauge wires that had been wedged under the converter and locked in with zip ties was worn through from rubbing on the sharp converter edges. We cut the zip ties and taped up the wires. The wires are looser now so we're not concerned that there will a repeat. I'm not sure if the wires themselves were exposed...it's hard to determine since once you put an arm in, it blocks your sight. They were pretty gouged and given they were tight against the converter, I wonder if that might have started the whole problem with the first PD4645. Perhaps we'll never get to the bottom of it if everything stays as it is now.
We'll continue checking on it throughout the rest of the day and then leave it plugged in overnight to chill down the fridge. Hopefully tomorrow all will still be well and we can head up to the mountains to check on the color of the aspens.
If you think of anything we didn't check that may cause a problem, please let me know and we'll check it out.
I've learned a bunch with this latest episode, but I'd like to have everything keep working so I can stop learning for awhile!