BryanValRox
Well-known member
Pressing the left arrow button should exit the set up mode.
No lcd reading renogy 40 amp controller
- Thread starter Fishfnatic
- Start date
Fishfnatic
Well-known member
I put the phone magnifier on it and could read it then 😂 manual it is confusing I arrows to gel which is what I have but I don’t think it sets unless I hold down enter button
BryanValRox
Well-known member
Correct after getting the setting correct you have to hold the rh arrow for about 3 seconds.
Fishfnatic
Well-known member
If I have 36v at pv means the solar panels are sending voltage right? Could I unscrew the terminals on front of controller to reset controller instead of getting on roof? Some research said to check solar panel I checked solar plus terminal and moving probe around could sometimes get 12 volts
Fishfnatic
Well-known member
What is difference in over plus and solar plus. Is solar plus the rook panels?
BryanValRox
Well-known member
Please press the left arrow key and see if your display returns.
Fishfnatic
Well-known member
Should I just try to reprogram like new?
BryanValRox
Well-known member
Did your display return?
Fishfnatic
Well-known member
Yes E0 returned
Fishfnatic
Well-known member
BryanValRox
Well-known member
Try pressing the LH arrow again
Fishfnatic
Well-known member
I did and nothing happened still same error code
BryanValRox
Well-known member
E0 is a normal condition and an indication you are in the diagnostic mode. A left or maybe an up arrow press should exit that mode.
I don’t recommend you disconnecting anything if your are not comfortable working with electricity.
If you can’t get the display to return to normal, I would recommend contacting Renogy tech support.
Sorry , I couldn’t get the ball over the goal line for you.
I don’t recommend you disconnecting anything if your are not comfortable working with electricity.
If you can’t get the display to return to normal, I would recommend contacting Renogy tech support.
Sorry , I couldn’t get the ball over the goal line for you.
Fishfnatic
Well-known member
Thanks for trying Bryan. You are always willing to help. Will contact Renogy tomorrow
Fishfnatic
Well-known member
BryanValRox
Well-known member
Well, I can’t really say for sure. It would depend on the logic within the controller.
Please keep us posted.
Please keep us posted.
Fishfnatic
Well-known member
Well I talked to Renogy support and rebooted by disconnecting unit and reconnecting it and has been working so far. Knock on wood. Do not know what caused it but tech said rebooting fixes most of time.
BryanValRox
Well-known member
Glad you got it worked out! Have you double checked your settings to make sure that they are all correct, given all of the button pushing that was going on.
Fishfnatic
Well-known member
I have 2 AGM batteries. Tried to set to 24 volt but it reverted back to 12 volt. I think it auto senses 12 or 24? With batteries wired in tandem but terminating in 2 post is that why it reads 12volt? When I re hooked up it was already on gel.
BryanValRox
Well-known member
Your RV should, be based on a 12 volt system. Your batteries should be hooked in parallel. (Positive to positive, negative to negative) this provides increased amp capacity without increasing the voltage. If hooked in series, positive to negative, the voltage would increase to 24. You need 12 volts.