GP-PWM-10-FM
22
© 2018 Go Power!
2. If there is no voltage reading at the controller battery terminals,
the problem is in the wiring between the battery and the
controller. If the battery voltage is lower than 6 volts, the
controller will not function.
3. For the solar array, repeat steps 1 and 2 substituting all battery
terminals with solar array terminals.
Remedy:
Check all connections from the controller to the battery including
checking for correct wire polarity. Check that all connections are clean,
tight, and secure. Ensure the battery voltage is above 6 volts.
Display Reading:
Nighttime
Time of Day: Daytime
Possible Causes:
Panel is covered by something; PV panel is too dirty to supply a high
enough voltage to charge the battery; PV panel is not connected.
Remedy:
Check the panel and to ensure it is not obscured. Clean the panel if it is
dirty. Check that PV cables are connected to the controller.
11.2 Problems with Voltage
Voltage Reading:
Inaccurate
Time of Day:
Daytime/Nighttime
Possible Cause:
Excessive voltage drop from batteries to controller due to loose
connections, small wire gauge, or both.
How to tell:
1. Check the voltage at the controller battery terminals with a
voltmeter and compare with the voltage reading at the battery
terminals.
