You can test whether the fan in flexmax MPPT 80 solar charge controller is normal. The details are as follows: Unplug the fan plug, connect the red wire to the positive pole, and connect it to the DC ﹣ 12V power supply. If the fan can run, it is good, but if it can't, it is bad.
Copyright © 2021 Wenzhou Xihe Electric Co., LTD| All Rights Reserved