MPPT Charge Controller User Manual - Feb. 2019 28
8. TROUBLESHOTTING
8.1 No display on LCD
Possible reasons and solutions
The connection between the battery and the
controller is not tight.
Check the wiring and reconnect it.
Possible reasons and solutions
DC breaker is not on between battery and
controller.
Possible reasons and solutions
- The system parameters are not matched
correctly. Recheck the label and
parameters on the machine.
- The battery does not work. Change for a
new one.
Possible reasons and solutions
The battery is connected negatively to the
controller.
Need change the internal fuse in controller
and reconnect to the battery.
Possible reasons and solutions
Check if the load connection is normal.
Remove the over load, press the set button
on the load interface to recover output.
Possible reasons and solutions
Check the load and press the set button on
the load interface to recover output.