Before you read troubleshooting – Go Power! GP-PWM-25 User Manual

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Owner’s Manual | GP-PWM-25 Regulator

7.0

Before You Read Troubleshooting

Before a problem is suspected with the system, read this section. There are numerous
events that may appear as problems but are in fact perfectly normal.

It seems like my flooded batteries are losing water over time.
Flooded batteries may need to have distilled water added periodically to replace fluid loss
during charging. Excessive water loss during a short period of time indicates the
possibility of overcharging or aging batteries.

When charging, my flooded batteries are emitting gas.
During charging, hydrogen gas is generated within the battery. The gas bubbles stir the
battery acid allowing it to receive a more full state of charge. Ensure they are in a well
ventilated space.

My voltmeter shows a different reading than the GP-PWM-25 display
The meter value on the GP-PWM-25 display is an approximate reading intended for
indication purposes only. There is an approximate 0.1 volt inherent error present that may
be accentuated when compared with readings from another voltmeter.

There may be a slight difference between the battery voltage displayed on the GP-PWM-
25 display and the battery voltage measured at the battery terminals. When
troubleshooting using a voltmeter, check both the battery voltage at the GP-PWM-25
battery terminals and battery voltage at the battery terminals. If a difference of more than
0.5 Volts is noted, this indicates a large voltage drop possibly caused by loose
connections, long wire runs, small wire gauge, faulty wiring, a faulty voltmeter or all the
above. Consult the Suggested Minimum Wire Gauge chart in Section 5 for wiring
suggestions and check all connections.