Answered

Help, Getting ACr code on rover 40amp controller

Posted by Ron Miller

Jan 21, 2019 at 11:19am

All,
This morning I noticed an "ACr" code on my controller. None of the buttons work on the controller. I tested the LED lights I have hooked up as well as the fridge and both lights and fridge are getting power from the batteries(via fuse box). Can someone tell me what the code means? And, how to clear it and if there is an issue, point me in the right direction? I did try disconnecting the solar panels, then the batteries, waiting a while(30 minutes because I was doing something else), and then reconnecting in reverse order. No change, still getting the ACr code on the controller. And, lights and fridge (engle 40qt) still work. Have had no issues in the past 3 months the system has been operating. Only difference being that temps fell to around 5 degrees F last night and has been the same all day (in CT US).

System is 2 renogy 100W panels hooked up to renogy 40amp mppt controller and 2 renogy 100ah lithium batteries. Put together in october 2018.

Regards,Ron Miller

Posted by tattoo

Jan 21, 2019 at 4:09pm

I think your batteries are suffering because of the low temps..... Batteries should never be allowed to get that cold..... I say your ACr is caused by low voltage.....

Posted by Ron Miller

Jan 22, 2019 at 9:08am

Voltage @ 14.4, batteries just fine. Temps outside were around 5, didn't say temps in van were 5 F. Can you show me where it says the renogy 100ah lithium batteries should not be exposed to "low temps"? MOST of the US right now as I write this are below freezing.

Posted by tattoo

Jan 22, 2019 at 9:50am

My batteries aren't below freezing they are inside..... It's not good for any battery, Li or not to be very cold... It weakens them.....

I'm just telling you why I think you got the error code..... Good luck....

Posted by bupkis

Jan 22, 2019 at 10:39am


Jan 21, 2019 at 11:19am Ron Miller said:


All,
Can someone tell me what the code means? And, how to clear it and if there is an issue, point me in the right direction?


It short hand for call customer support and get a replacement!

Posted by tattoo

Jan 22, 2019 at 12:11pm

^^^^ That's awesome to know....^^^^^

Posted by v10

Jan 26, 2019 at 3:02pm

A call to customer service might be the way to go.

My batteries are under the van and I have had no unexpected issues. Slower charging and faster draining yes, but no failures or codes.

We've not seen single digits in my area yet, but low teens and no issues.

Posted by Virgil

Feb 9, 2019 at 6:21pm

Ron Miller: Wondering how your issue was resolved. I'm looking at the 40 amp MPPT Rover for purchase, and am very interested in Renogy's customer support system. Sounds like they do not include a user manual with the controller; I'd expect a troubleshooting section would detail the error codes.

Posted by tattoo

Feb 9, 2019 at 6:30pm


Feb 9, 2019 at 6:21pm Virgil said:


Ron Miller: Wondering how your issue was resolved. I'm looking at the 40 amp MPPT Rover for purchase, and am very interested in Renogy's customer support system. Sounds like they do not include a user manual with the controller; I'd expect a troubleshooting section would detail the error codes.


I have a 40a CC and a 60a CC one came with a manual and the other not but they are available on line, but they seem to be vague at best....


Customer service is hit and miss at best...

Posted by Virgil

Feb 9, 2019 at 10:05pm

Yes, looked up the online manual to find a chart that lists 10 error codes, all "E*". So no "ACr" definition anywhere in the document, and it's best not to guess at it. Maybe the OP or a Renogy admin will update us.

Posted by tattoo

Feb 10, 2019 at 5:13am


Feb 9, 2019 at 10:05pm Virgil said:


Yes, looked up the online manual to find a chart that lists 10 error codes, all "E*". So no "ACr" definition anywhere in the document, and it's best not to guess at it. Maybe the OP or a Renogy admin will update us.


What is the voltage in your battery?

Posted by Admin

Feb 10, 2019 at 7:25am

Just to confirm you have a Rover Li correct? Is this also connected to a LFP battery?

If so, the ACr is an activation request from the battery. In most if not all cases, the code will solve itself and you need to leave the controller connected to the battery. Make sure to have the battery not connected to any loads but the controller while the controller tries to activate the battery. If after a few hours the code is not resolved then I would advise you to contact technical support.

On page 7 I believe it talks about the activation feature, but you are correct, it does not mention an ACr code. This will be updated.

-Renogy Team


Page 7:

www.renogy.com/template/files/Specifications/Rover%20203040.pdf

Attachments:

Screenshot_20190210-112059_Hancom Office E....jpeg
  • Detailed Answer above

Login or Signup to post a comment