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Water pump does not work when i turn on hot water tap

I empted the water system for the winter in the camper van, when i filled back up again i found the water pump worked when i turn the cold water taps on but not when i turn the hot taps on. There is no air or water coming out of the hot taps, it does sound as if the pump tries to start up at about 30 second intervals somone said it could be the none return valve or the filter needs cleaning (1) is the none return valvue on the outside of the van, (2) where is the filter found, (3) in the book it says to fill the tank up with water does this mean to the top or is it OK half filled, The water pump is carver cascade rapide. I have a book on the pump it tells you how to fit the pump and there is a section on troubleshooting and it tells you what what to do if somthing is wrong but not how to do it or where to find it. If we cant solve this between us i would like to thank you for your time.

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  • ian_william_ Apr 23, 2009

    micaijh I have had a look no leaks no blockage not sure about the shut off valve will have a look i think i may not have shut the none return valve off before filling will try again thanks for taking the time to try to help me.

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Since the cold water works, the problem is not the pump. Look for a blockage or possibly a major leak in the hot water system. if you have a kitchen sink and bathroom sink, are both hot water outlets not working? Does the water heater have shut off valve , or is its drain still open from when you winterized it (and the water running out to the ground instead of to the faucet?

Posted on Apr 23, 2009

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