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1L243's avatar
1L243
Explorer II
Apr 18, 2017

Water pump causes led lights to flicker when on Battery

This is a new trailer and when on battery power and using the water pump all the led lights flicker. There are two batteries and they are fully charged... Any thoughts of what could be causing thi...
dougrainer's avatar
dougrainer
Nomad
Apr 19, 2017
Is the water pump running at speed when this happens or does it surge and cut in and out? Depending on how many faucets are open the Pump surging is normal. Your problem is normal for some RV's depending on the water Pump and how it operates. The Water Pump pulls significant amps and can cause voltage fluctuation problems. Regardless of how many batteries you have. When on Shore Power, the Power Converter keeps the DC voltage pretty static at 12.9 to 13.1 with no voltage variations. Doug

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