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Old 01-07-2018, 08:14 AM   #15
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Originally Posted by kamakalama View Post
The pumps are mounted in a separate cabinet from the main burner unit. There are 3 pumps: zone 1, zone 2, and hot water (summer loop?)

I think there may be another pump inside the main unit where the diesel burner is.

The zone 1 pump is the one at lower right in the photo. Zone 2 is above it and the other is hot water.

FWIW, the switch on top of the zone controller turns all three pumps on.
How complicated is it to change one of these pumps out?..I understand all 3 pumps are identical,,,Chuck

2017 45 FT Newmar Mountain Aire Seville Freightliner..with a 2015 Granite Grand Cherokee
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2012 (Piglet)American Tradition Merlot-Spartan>>SOLD
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Old 01-07-2018, 12:42 PM   #16
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Oasis pump change

The pumps are not difficult if you have some mechanical aptitude. They are located in the distribution box. ITR will email you directions on how to change the pumps. If you buy a pump, get it from ITR and not Newmar. It is considerably less from ITR. All three are the same basic pump.
Newmar changed the summer loop pump for me while I was at Nappanee and three days later when I was home in Oklahoma, I got to change the recirculating pump. I'm still having problems that ITR and Newmar are working on.
Dutch Star Don has some of the best info concerning Oasis system.
Good luck and be safe

John & Deb
Full Time since 2016
2016 Dutch Star 4369
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Old 01-08-2018, 11:51 PM   #17
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Just got done replacing the pump for heat loop 2 which went out on our last trip. ITR was helpful in removing the old pump (the hose was a bit challenging to remove from the old pump).

Our coach is a 2015 Dutchstar 4018.
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Old 01-16-2018, 06:41 PM   #18
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Make sure its not an issue with the takeup stem in the holding take. My water heater was not heating. While traveling i called newmar who hooked me into oasis. We went through diagnostics to determine a pump was failed due to the noises it made. When i took it in the repair site figured out it was lack of fluid getting to the pump since the straw in the resorvoir had fallen off

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