If the solar controller is not working properly or has a functional error, you will need to give a reboot or reset your solar controller, all controllers can be operated in this way to work properly again. We have compiled several methods that can be implemented to turn off the solar charge controller.

Although there are two types of solar controllers, MPPT controllers and PWM controllers, the shutdown operations mentioned below are all applicable.

Solar controllers often shut down because they need to be reset, or because they need to be replaced with an upgraded version of the solar controller. You can do both with confidence and following the correct steps, it will not damage the solar controller.

If it just needs to be restarted, there is no need to worry because the pre-set solar controller charging parameters are stored in the solar controller chip and the data will not lost, so you can continue to operate after re-enabling.

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3 Ways Turn Off Solar Charge Controller

there a several ways to shutdown the solar charge controller to get it back to work.

Turn off the solar charge controller by the switch

Almost all appliances and electronic devices come with an on/off button to turn them on or off, or to restart them. But when it comes to solar controllers, not many of them come with this feature, or it doesn’t need it.

However, there are some solar controllers that come with a switch that you can simply toggle or Press to turn the controller on or off. for instance, the ZHCSolar 10A MPPT Charge Controller is come with a on/off switch.

One thing that always needs to be noted is that when performing the shutdown action, you must ensure that there is no solar input at that time, preferably in the dark or at night. This ensures the safety of people and equipment.

Turn off the Solar Charge Controller by circuit Breaker

In order to ensure the normal operation of the solar system and the safety of personnel and equipment, it is important to deploy the solar controller fuse system correctly, you can install fuse boxes and circuit breakers on the charging and discharging lines.

You can turn off the solar controller by directly cutdown the circuit breaker. As mentioned above, directly turning off the solar controller will not damage it, and its charging parameters will continue to be available.

As with the previous safety reminder, make sure there is no power input from the solar panels before disconnecting it so that the solar controller is not damaged.

Solar Charge Controller cutoffs by power off both from PV and Batteries.

There is another way to perform solar controller shutdown, but it is not an active but a passive way, which means that the solar system is no longer running, the solar panels will not generate power, and the battery connected to the solar controller will have no power in it. The solar controller will then automatically shut down.