Run dry pump protection 2007 SAN

[CJ Nafziger]

New to the forum so take it easy on me! Boat is a 2007 SAN 210TE. Boat was new to me this fall so I only got a couple outings to try it all out. It has additional plug and play ballast and the go surf assist system. Very happy with the boat and had it putting out a nice clean wave. Looking forward to next year. Anyway, on to my issue. I had one ballast pump filling slower than the rest so I ordered new impellers, got the green replacements. Others were in poor shape, very wore, one had started tearing. Got to thinking to myself.....what makes these pumps shut off when draining? I ran mine through the paces with no impellers on the pumps and can’t get the pumps to shut off. Floats appear to working correctly with 235 ohms empty on the “worst” one and 250 on the best one. Gauges read correctly as well. These pumps have only two wires to them so I don’t know how gauge level would interrupt the pump but electrical is not my strong suit! I read about a ballast control module and found pictures and I am nearly 100% sure that my boat does not have one. Perhaps this changed with the 2007 changes? I have also found a video that says the motor is thermally monitored and shuts off when it builds heat from no water. When I read the jabsco data, it says that this feature is not meant to protect the impellers. Pumps are jabsco 18670-6127. So my questions are:
1. Does the 2007 SAN have a run dry module that protects the impellers?
2. If so, where is it located and would anyone have a picture or part number?
3. If there is no run dry system and the impellers can be damaged before the thermal protection on the motor shuts it down, does anyone have a system that they have came up with besides listening to the pitch of the motor and watching the gauges to ensure they don’t harm the impellers?

Thanks in advance!

[NautiqueJeff]

There is some info on the run dry system here:

https://www.planetnautique.com/vb5/f...-drain-problem

[CJ Nafziger]

Thanks for the reply. Didn’t quite get me headed in the right direction. My system is filling and draining correctly, I just don’t believe it has any means of detecting when the tanks are empty to automatically stop the pumps to prevent damage to the impellers.

[MN Ryan]

I wish I had an answer for you. I have an '07 SV-211TE. I'm pretty sure I don't have that "run dry" module--another member here stated that that was only used in '06. My boat is tucked away for the winter, but I plan on upgrading the ballast in the spring, so I'll have to figure that out.

Right now, mine is bone stock. My pumps do shut off when empty (or thereabouts). I'm not sure if they're timed out what.

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[MTRBTR]

Pretty sure they went to timers in 2007

[CJ Nafziger]

Thank you for the replies. The last few days in CO have felt like we put the boat away too early, we will keep looking forward to next season. If I come up with any new information I will be sure to post.

[MN Ryan]

Well, I finally got my boat wet this spring. I unplugged the sensors at each rear tank, and everything functioned normally (except the gauges don't work, obviously). So, my conclusion is that they switched to timers in '07. They shut off after about 3.5 minutes (emptying).

Now, I've got the hard tanks removed and am working on prepping the rear compartments for bigger bags.

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