Motorhome Forums, Motorhome Discussion, Motorhome Chat - View Single Post - water pump on the lunar champ a630

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post #3 of (permalink) Old 09-10-2014, 11:35
HarryTheHymer
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Join Date: May 2005
Location: Sussex
My Motorhome: Carthago Chic I 4.2
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Welcome to MHF as a visitor.

There are 2 types of pump. One is a submersible pump which would be suspended in the fresh water tank. The other is a diaphragm pump which would be located elsewhere, possibly in the heater compartment.

Assuming the pump is not faulty, the main reasons for low pressure are:
a) air in the system
b) a water leak in the system

Suggest you start with opening all the taps (one at a time), with the pump switched on, and see if any air comes out.
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