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philh's avatar
philh
Explorer III
Apr 07, 2019

New Coachman, Water Pump Issues - Updated/Fixed

192 RBS, we took delivery with the system still winterized. 12V pump shakes and rattles... but won't roll (the water). Air is out of all the lines, hot water tank, including the external shower. ...
Ralph_Cramden's avatar
Ralph_Cramden
Explorer II
Apr 08, 2019
You should not have to prime an RV water pump, they're self priming. There can only be a few things wrong.

1- The tank is empty.
2- The Winterization valve is in the open position as its tied in ahead of the pump.
3- The pump is shot.
4- There is a leak in the suction line or somewhere else ahead of the pump, and it's sucking air.

The city water connection has nothing to do with it, as its tied in past the pump.

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