Although you have a solar panel, your solar charge controller is not picking it up.

The moon error sign on the controller might mean a number of different problems.

Two frequent reasons are a blown fuse or a faulty connection between the solar panel and the battery.

A controller may also display the moon error signal due to dirty panels.

You must restart your solar charge controller if one of these situations applies.

How To Proceed If The Charging Controller Malfunctions

There are a number potential causes if you’ve observed that your solar charge controller isn’t functioning correctly.

Check the battery connection first.

The battery is full and may require cleaning if the controller displays 0.0.

If it displays a long-term ACr code, the internal controller is probably malfunctioning.

Try doing a soft reset, resetting the controller, then severing the solar and battery lines to see if it helps.

After attempting these suggestions, you can always hard reset the controller if it still won’t reset.

Your solar panel and battery must be unplugged in order to avoid a hard reset from occurring.

You must first unplug the batteries and battery connections before doing the hard reset.

It will take the controller two to fifteen minutes to reset.

To Reset, The Controller Will Need Access To Power And An Outlet

Causes of a solar charge controller malfunction.

You can be dealing with a few frequent issues if your solar charge controller isn’t functioning.

You must first verify the output voltage.

Your solar charge controller may not be adjusted properly if you observe that it is not recharging the battery.

You may then attempt to reset the controller.

You may ask for assistance from customer service if the issue continues.

You may ask the manufacturer for a new item if you have a warranty.

Identifying the issue with your controller may be difficult if you just bought a solar power system.

A solar panel will generate less electricity if it is too hot or cold than if it is too chilly.

According to the kind of battery and its level of charge, the voltage of your battery may range from 10.5 to 14.6 volts, and the charge controller is made to regulate the output voltage of your panel to that value.

Consult the owner’s handbook to determine if your charge controller is too hot or too cold.

How To Test The Solar Controller’s Functionality

If your controller shows a moon symbol, your solar panels are probably not providing enough electricity.

Check the voltage between the battery’s terminal block and the inline fuse on the controller to confirm this.

The battery may not be getting enough energy from the sun to operate the controller if the controller voltage is less than 18V.

The issue could be resolved by restarting the solar controller.

It’s crucial to confirm the functionality of all three parts.

You must first be familiar with your multimeter’s settings.

A fully charged battery shouldn’t be tested either since it won’t receive the current.

When taking these measures, you should also utilize an additional wire or an extension cable.

Make sure a Quick-Connect Plug is attached to the lead wires.

Connect the regulator and solar panel once they are connected.

Continue until the battery no longer exhibits resistance.

How Is A Solar Charge Controller Reset?

A solar charge controller may be reset to its default settings, which might resolve any issues.

Only if your solar panel is malfunctioning should you go through this method.

Always detach the PV module cables and cover them before you start the operation, and choose a secure area.

The power/reset buttons on the controller’s front may be pressed and held down for at least 15 seconds to complete this operation.

You may hard reset the controller if the system still won’t reset correctly.

You need to remove it from the wall and wait till a specified period of time has passed.

Try doing a soft reset on the solar panel controller if it is not charging correctly.

Restarting your computer or smartphone is comparable to this.

Unplug a solar panel controller from the battery to reset it.

However, you should seek the assistance of an experienced expert to complete the reset if the controller continues to exhibit error warnings.

As an alternative, you may attempt forcing your solar panel controller to reset.

You may also try disconnecting the solar panel and reconnecting the battery if it still isn’t functioning correctly.

Steps For Resetting A Solar Charge Controller

By performing the following procedures, you may restore your solar charge controller to its factory default settings: Initially, take the battery out of the charging controller.

Then, shut off the fuse or circuit breaker.

Uncover the solar panels and connect them to the regulator once two minutes have passed.

Then, using a multimeter, verify the solar charge controller’s load output.

Make sure it displays 10A at most.

Disconnect the positive connection from the controller’s battery as well.

The solar charge controller might be broken if your solar panel is giving you problems.

Various problems may be resolved by resetting it.

To ensure you’re doing things properly, be sure to thoroughly follow the instructions in the handbook.

It might take as little as two minutes or as much as fifteen to reset the controller.

However, if you’re not confident doing electrical work, you may want to hire a specialist to install your system.

Reset the solar charge controller using the instructions below to restore its functioning.

Step 1: Hard Reset

  • ALL the buttons on the charge controller’s front should be pressed.
  • Hold down the button until the RESET sign appears.
  • To do the reset, press the appropriate Button.
  • Included in the Reset the Charge Parameters are the battery voltage, input voltage, and output voltage.

Step 2: Try Hard Resetting The Charge Controller If Soft Reset Doesn’t Work:

  • Connect the solar panel and battery bank without the solar charge controller.
  • Keep waiting for the solar controller
  • Examine the solar controller’s state.
  • Waiting for 30 minutes
  • input DC power and clear the settings and DATA (if any) as directed by the aforesaid soft reset.
  • Correctly reconnect each and every wire.
  • Set the charge parameters, which include the battery voltage, type, and input and output voltages.

A Solar Charge Controller Needs Assistance.

The solar specialists at ZHCSolar have created a comprehensive guide for correcting charge controller errors if your solar charge controller isn’t functioning as it should.

Fix your solar power system after consulting the instructions.

To learn how we can assist, get in contact with us right now.

Posted under troubleshooting is this entry.

Save this page for later.

How To Reset Solar Charge Controller Videos Suggestions From Youtube

Reset Solar Charge Controller – eMarine Systems
PWM 30 Controller Hard Reset – Go Power!
PWM 30 Controller Soft Reset – Go Power!
Troubleshooting Solar Charge Controller Rover series Part 2 – Renogy Solar

Published on

Written by Bob Matsuoka
Bob Matsuoka is a blogger and founder of RVing Beginner blog. He has been blogging for over five years, writing about his own family’s RV adventures, tips for people who are interested in buying an RV or taking their family on an adventure by RV.