jleamont Report post Posted August 8, 2020 Here’s one I haven’t seen yet. My fresh water pump keeps turning itself on. Of course the tank is empty and I probably need a new pump now, it was so hot you could cook on it! I have no idea how long it was running before my DW found it. I unplugged the pump (Figuring it would happen again), came back an hour later and the water pump light was back on. I’ve checked all switches, no issues observed. Last night I checked on it a few times and it remained off, this morning the light was back on (sure glad the pump is unplugged now). I believe I have a failed latching controller. I am going to unplug each switch input and see if the problem goes away before I begin hanging parts. Thoughts, experiences? Share this post Link to post Share on other sites
hermanmullins Report post Posted August 8, 2020 Joe your pumps micro switch may be burnt closed. About $5.00 for the switch. Been there done that. Herman Share this post Link to post Share on other sites
richard5933 Report post Posted August 8, 2020 If you have multiple switches connecting to the relay, it's possible one of them has failed. I'd start by turning the pump off and unplugging all the switches, then check the status. If the pump doesn't turn back on by itself, plug the switches in one by one till you isolate which is the problem (if any). Good to eliminate this as a cause before moving forward. Share this post Link to post Share on other sites
manholt Report post Posted August 8, 2020 Joe, Sureflow 3.2? Share this post Link to post Share on other sites
jleamont Report post Posted August 8, 2020 Carl, I have this pump; https://thesolarstore.com/aquatec-5513-1e11-b636-550-series-pressure-pump-12vdc-p-496.html Herman, what micro switch are you referring to? Richard, thank you. Share this post Link to post Share on other sites
kaypsmith Report post Posted August 8, 2020 Joe, there is a microswitch built into the pump, it is triggered by the sense of low water pressure, I think this is the switch that Herman was referring to. It of course opens back up when the low pressure has been cured, and if it does burn shut then it will remain on forever, not just on occasion, lack of water will surely result in low pressure. Share this post Link to post Share on other sites
jleamont Report post Posted August 9, 2020 Kay, it was shut off, water system is empty since the coach is parked between trips. DW found it running on air, based off of its external temperature it had been on most of the day. I’m going to unhook the switch signal and see if it still comes on with all interior switches disconnected, if so it’s got to be the Latching module. Unfortunately the pump has to be destroyed or at least no longer dependable so it will be replaced also. Share this post Link to post Share on other sites
dickandlois Report post Posted August 9, 2020 9 hours ago, jleamont said: Carl, I have this pump; https://thesolarstore.com/aquatec-5513-1e11-b636-550-series-pressure-pump-12vdc-p-496.html Herman, what micro switch are you referring to? Richard, thank you. Joe, The latching relay commonly used is rated at 7.5 amps made by Intelitec . They do make one that will cover the 10 amps required by the 12 volt unit you listed. Rich. Note. One used to be able to buy a rebuild kit for the pump head if the motor is still good. Share this post Link to post Share on other sites
elkhartjim Report post Posted August 9, 2020 Joe, this is a good article on checking the latching relay. http://www.tiffinrvnetwork.com/crusingator/P/P-085.pdf Share this post Link to post Share on other sites
jleamont Report post Posted August 9, 2020 Jim, the schematic is a huge help! Thank you! Share this post Link to post Share on other sites
jleamont Report post Posted August 9, 2020 6 hours ago, DickandLois said: Joe, The latching relay commonly used is rated at 7.5 amps made by Intelitec . They do make one that will cover the 10 amps required by the 12 volt unit you listed. Rich. Note. One used to be able to buy a rebuild kit for the pump head if the motor is still good. Thanks Rich, the motor was so hot it almost burnt my hand. Not sure how reliable it will be moving forward? Share this post Link to post Share on other sites
richard5933 Report post Posted August 9, 2020 We had a leak a few years ago which caused our pump to be on for hours. Got very hot, like yours. Repaired the leak and the pump magically still worked. I ordered a new one which I planned to install, keeping the old as a spare. As it happens, I didn't have time to r & r the pump. It's still pumping, almost three years later. I still carry the new one for when it quits. Did you figure out what is causing it to stay turned on? Share this post Link to post Share on other sites
jleamont Report post Posted August 9, 2020 Richard, the Latching controller had water in it. So upon further investigation the compartment door seal had failed. We just experienced a category 1 hurricane the day before and severe storms the day after. I removed the controller, blew it out with air replaced the door seal and it all works now. I am going to order a replacement pump. It would be hard to travel and depend on it. I’ll probably swap it out and hold onto the original. Share this post Link to post Share on other sites
rayin Report post Posted August 9, 2020 Joe, good call on carrying a replacement pump. During our Alaska trip the wagonmasters water pump failed, he carried a spare; had he not it would've been a miserable trip for him and his wife. A new pump flown in from Seattle would be expensive. Share this post Link to post Share on other sites
richard5933 Report post Posted August 10, 2020 I also carry a spare latching relay. Seems like a possible weak link. Share this post Link to post Share on other sites
elkhartjim Report post Posted August 10, 2020 I carry a spare latching relay; by having a $25 spare part that is prone to failure gives me a sense of security, Joe. Maybe false security but secruity none the less. Glad you found the issue. Share this post Link to post Share on other sites
manholt Report post Posted August 10, 2020 Jim S. Does that mean your going to carry a spare TRW ? 😁 Joe, we got a spare pump at home and yes, it's going with us to Alaska in 2021. Share this post Link to post Share on other sites
hermanmullins Report post Posted August 10, 2020 I have replaced my pump several times but never thought of carrying a spare. That is an excellent idea more especially if going off in the boonies. I got my last pump at Walmart 3.0 gph at 55 psi. Sorry I can't remember the price but it was the best priced. Herman Share this post Link to post Share on other sites
jleamont Report post Posted August 14, 2020 (edited) Update; so far the dried out Latching relay is still functioning properly. I haven’t replaced the pump yet, sadly the coach is parked at the house with no plans to move until next season. I will order one soon and replace it. Rich, our relay is the 10 Amp model. I made my way around the basement compartments and replaced all of the deteriorating seals. My pyrometer module also got wet, it dried out and works as well. I started the coach and the gauge went to 2000 degrees. Edited August 14, 2020 by jleamont Share this post Link to post Share on other sites
elkhartjim Report post Posted August 14, 2020 On 8/10/2020 at 12:55 PM, manholt said: Jim S. Does that mean your going to carry a spare TRW ? 😁 Joe, we got a spare pump at home and yes, it's going with us to Alaska in 2021. At $5,000+ I don't think so. 😱 Share this post Link to post Share on other sites
jleamont Report post Posted October 20, 2020 (edited) Anyone using this pump? 55Aquajet-ARV http://www.remcoindustries.com/product-pages/aquajet/ I just ordered one, hoping to install this weekend and i was wondering if anyone had any real world experience with it ? Edited October 20, 2020 by jleamont Share this post Link to post Share on other sites
hermanmullins Report post Posted October 20, 2020 Joe I replaced my Shurflo 4008-101-a65 pump this last year. 3 GPM at 55 PSI, I got it from Walmart in 2 days for $89.75. Works very well. Herman Share this post Link to post Share on other sites
jleamont Report post Posted October 20, 2020 (edited) On 10/20/2020 at 2:59 PM, hermanmullins said: Joe I replaced my Shurflo 4008-101-a65 pump this last year. 3 GPM at 55 PSI, I got it from Walmart in 2 days for $89.75. Works very well. Herman DW is spoiled with the 5.3 GPM at 65 PSI that the current pump has. If I go lower she will notice it, plus its not uncommon to have 2 faucets open at one time, this and our current one speeds up. I am going to rebuild our current pump and keep it as a back up. I always carried a backup and sold my last one to a friend while we were camping when his failed. Edited November 3, 2020 by jleamont Share this post Link to post Share on other sites
jleamont Report post Posted November 3, 2020 (edited) Replaced the pump with the one from the link above. Works great, plenty of water pressure. It’s quieter than the original, same specs so it performs equally as impressive. Edited November 3, 2020 by jleamont Share this post Link to post Share on other sites
wildebill308 Report post Posted November 3, 2020 Well that's good news. Bill Share this post Link to post Share on other sites
