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HVAC, Aircconditioners, Aqua Hot, Primus, Webasto, Chassis Heaters, Furnaces and Water Heaters Questions and information about the wide variety of Heating and Air Conditioning as well as Water Heater systems available are discussed here.

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  #11  
Old 10-11-2017
konehd konehd is offline
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Quote:
Originally Posted by Randy Dupree View Post
Some guys have good luck raising the front end,but i think the pumps are so small they have a tough time getting the air out.
I use a 120vac sump pump,rig up some hoses to the system,put the sump pump in abucket of coolant,return the coolant back to the bucket with another hose and plug the pump in.
no bleed valves to open inside the coach,just force the air right out.
Fast,easy.
I use the same sump pump to install coolant back into a coach,after draining and flushing.
its way easier than pouring out of a gal jug into a funnel.
Thats the best way. I never had any luck using the wimpy primus pumps to bleed the system...

If you want to run the primus pumps, best way is to simply move the wire on the pump relay from the NO to NC contact on the pump relay... I ran like that for days trying to get the air out, it wasnt till I got to Ned B's place in WA and used his sump pump that I had any luck!

When you set up for this put some valves in so its easier next time!


Good luck!


/Joe
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  #12  
Old 10-11-2017
CaptPegLeg CaptPegLeg is offline
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https://www.ecstuning.com/b-schwaben...l/003466sch01/

Try this?
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  #13  
Old 10-11-2017
ScottyDigital ScottyDigital is offline
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Alright so the left side is working on propane, yes there was a ton of air in the system, and yes, I was able to confirm the that pump was pumping fluid. I was able to bleed over about a 15 minute period, it runs well.

It does not work off the 110 system, so that is the next thing to figure out. It does not appear that the inversion system is kicking on. The red buttons light up, but nothing under in the bay is running. Back to the user manual.

Right side, pump sounds like it is on, but, as suspected, it is not in fact pumping fluid, so I will need to see if I can get that impeller turning, or else, I will have to source another inline DC pump & Motor.

Thanks for all the help, trying to get the heat system up and running for the winter, so I can then stay warm and cozy inside when I am doing the renovations.
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  #14  
Old 10-11-2017
ScottyDigital ScottyDigital is offline
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I will try one of these external sump pumps as recommended. Thanks all!!
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  #15  
Old 10-11-2017
konehd konehd is offline
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Quote:
Originally Posted by ScottyDigital View Post
Alright so the left side is working on propane, yes there was a ton of air in the system, and yes, I was able to confirm the that pump was pumping fluid. I was able to bleed over about a 15 minute period, it runs well.

It does not work off the 110 system, so that is the next thing to figure out. It does not appear that the inversion system is kicking on. The red buttons light up, but nothing under in the bay is running. Back to the user manual.
Check and make sure you have immersion heaters ;} All the control panels have the buttons, but few have the heaters...

You can see them down by the pumps, or check and see if you have AC breakers for the immersions...


HTH, Joe
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  #16  
Old 10-14-2017
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biobug biobug is offline
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I have been watching this closely also. I am in the same boat. It worked great at "Q" this year but stopped on the way home. It has been doing the start up and then puking the antifreez out overflow and shutting down. I tried the sump pump thinking I was getting air in the system but to no avail. I replaced the relay which was pretty corroded and pulled the pump and found it dead. I have one coming from Dupree Products. Hopefully it will be up and running when I take her south in 2 weeks. Thanks for all the info steering me to a proper fix!
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  #17  
Old 10-18-2017
ScottyDigital ScottyDigital is offline
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I think it is clear, the pump on the passenger side of mine is simply not pumping. So….. On the hunt now for a replacement.
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  #18  
Old 10-18-2017
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Randy Dupree Randy Dupree is online now
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Quote:
Originally Posted by ScottyDigital View Post
I think it is clear, the pump on the passenger side of mine is simply not pumping. So….. On the hunt now for a replacement.
Thats no surprise tome.
Go with a bigger pump,like a Groco school bus pump,they work forever.
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  #19  
Old 10-18-2017
ScottyDigital ScottyDigital is offline
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Quote:
Originally Posted by Randy Dupree View Post
Thats no surprise tome.
Go with a bigger pump,like a Groco school bus pump,they work forever.
Searching now!
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  #20  
Old 10-19-2017
Stephen Stephen is offline
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We have groco pumps and primus pumps listed on our website
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