We purchased a used MH Sand are on our first trip with it. We are new to RVing as well. The water pump runs continuously. We watched a YouTube video about getting an open valve closed and went through the steps twice and it hasn’t helped. Is there anything else we can check before we take it in to the repair shop?

Only a few things will allow a water pump to run continuously - an empty fresh water tank, a bad check valve, or a leak. Do you have water in your fresh water tank?Are you hooked up to a water connection? And if so are you leaving your pump on?Are your valves set appropriately?Is there evidence of a leak somewhere?Was there any sort of pre-delivery inspection done on this MH?By the way, did you get your light switch sorted out?

The most common cause of this type problem is, you have your City Water tank fill valve OPEN. This will cause the pump to continually recycle the water. I also assume it will turn OFF when requested to do so? From the Pump On/Off switch?. Now, if you are connected to City Water and that valve is left open, your fresh tank will overflow. You are new to the forum. ALWAYS, list Year/Make/Model/Chassis of RV when posting. Or put this info in your profile. Doug

A few basic questionsIs there ample water in the fresh tank?Are you allowing enough run time to fill water heater?Is the valve for winterizing in the proper position?Are you opening a single faucet to allow air to escape?A knowledgeable friend, with more RV experience may be able to help with diagnosis, rather than taking to dealer.Jerry

Verify the fill valve is in the run position, if equipped.

dougrainer wrote:The most common cause of this type problem is, you have your City Water tank fill valve OPEN. This will cause the pump to continually recycle the water. I also assume it will turn OFF when requested to do so? From the Pump On/Off switch?. Now, if you are connected to City Water and that valve is left open, your fresh tank will overflow. You are new to the forum. ALWAYS, list Year/Make/Model/Chassis of RV when posting. Or put this info in your profile. DougListe the info I could in the profile. Some of their selections are outdated and don’t have years past 2020

Water pump runs continually | Good Sam Community

22 Replies

dougrainer
Nomad
Jan 09, 2022
The most common cause of this type problem is, you have your City Water tank fill valve OPEN. This will cause the pump to continually recycle the water. I also assume it will turn OFF when requested to do so? From the Pump On/Off switch?. Now, if you are connected to City Water and that valve is left open, your fresh tank will overflow. You are new to the forum. ALWAYS, list Year/Make/Model/Chassis of RV when posting. Or put this info in your profile. Doug
way2roll
Navigator III
Jan 09, 2022
Only a few things will allow a water pump to run continuously - an empty fresh water tank, a bad check valve, or a leak.

Do you have water in your fresh water tank?

Are you hooked up to a water connection? And if so are you leaving your pump on?

Are your valves set appropriately?

Is there evidence of a leak somewhere?

Was there any sort of pre-delivery inspection done on this MH?

By the way, did you get your light switch sorted out?

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Water pump runs continually

22 Replies

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