Solar Over Temp

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   Very unlikely that water could get into the solar module, and that wouldn't create an overtemp error in the controller anyway. Unless you're getting a battery overtemp alarm (there is a different error code for that) the controller has a temp sensor that is monitoring the heat sink the transistor(s) are attached to. It apparently thinks the temp is too high when its not because you had it disconnected long enough to cool down I'm sure. So it has shut off charging to try to cool down. 
You could try to identify and replace that temp sensor I guess, or clean it up and make sure that it isn't shorted. Was there any moisture in there when you opened it up? 

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offgrid Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 23 Jul 2018 Online Status: Offline Posts: 5290	Topic: Solar Over Temp Posted: 30 Jul 2020 at 7:43pm
	Very unlikely that water could get into the solar module, and that wouldn't create an overtemp error in the controller anyway. Unless you're getting a battery overtemp alarm (there is a different error code for that) the controller has a temp sensor that is monitoring the heat sink the transistor(s) are attached to. It apparently thinks the temp is too high when its not because you had it disconnected long enough to cool down I'm sure. So it has shut off charging to try to cool down. You could try to identify and replace that temp sensor I guess, or clean it up and make sure that it isn't shorted. Was there any moisture in there when you opened it up?
	1994 Chinook Concourse 1995 RV6A Experimental Aircraft 2015 Rpod 179 - sold

fwunder Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Oct 2013 Location: New Jersey Online Status: Offline Posts: 1676	Posted: 30 Jul 2020 at 7:24pm
	Disclaimer: I'm just learning from much smarter folks here. Firs thing I would do is check open circuit voltage of panel(s). Just need a voltmeter to check. That would rule out panels. If they are not or have not been physically damaged, they would be guaranteed. I would then check output voltage of controller. You could have a problem with the controller-pod connection? Do you have a way to connect controller to battery without using pod built in port? You could easily make one. Renogy support is slow. I've been working a couple of tickets for a couple of weeks, but feel like I am slowly making progress. Most of my help has come from here. I have to say, the last thing I would do is take controller apart.
	2014 RPod 178 => MyMods and Buying Habits 2008 4Runner Limited 4.0-liter V6 Yes, those are wild ponies dining on grass while dumping tanks!

mikeyg2347 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 27 May 2015 Location: MT Online Status: Offline Posts: 75	Posted: 30 Jul 2020 at 7:05pm
	Any one have any idea what the "over temp" error message means on a charge controller? I've got a Renogy 100w system that I've had for about 5 years. It sat out in a hard rain (which it's done many times before) and when I plugged it into the solar port I got a message saying "over temp". Now it isn't charging. I took the controller apart thinking maybe it needed to dry out, but no luck. Called Renogy, got put on hold for an hour and finally talked to a woman who had no clue about anything, but promised to send me an email with a ticket number. Naturally the email never came and they aren't responding to my emails, so here I sit wondering if I need a new controller, if water possibly got in the panels and shorted them out....I dunno. Any thoughts? Thanks. Mike
	Mike