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07-10-2017, 03:31 PM
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#1
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Member
Join Date: Jan 2014
Location: Oceanside, NY
Posts: 82
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Oasis water pumps
My pump for domestic hot water failed. I've been reading problems with these pumps from other folks. Took the wires from the failed pump and transferred over to one of the heat zone pumps so we would have hot water without activating summer loop switch.
Bottom line: need to replace pump at around $300. Seems excessive to me.
Has anyone considered looking in to or may have used another manufacturers pump with same specs?
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Doug and Patty
2014 DSDP 4038
2013 Harley Triglide on a Hydra-lift 
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07-10-2017, 04:01 PM
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#2
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 24,125
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I would be interested in finding a replacement. With all the posts recently about failed pumps, I was getting ready to buy one as a spare.
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Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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07-10-2017, 05:14 PM
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#3
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Senior Member
Join Date: Nov 2007
Location: Charleston, WV
Posts: 3,469
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They are specials built for the Oasis units and the manufacturer will not supply directly to you. I have just had to replace my Loop 1 pump so I feel you pain.
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John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
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07-10-2017, 09:06 PM
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#4
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Senior Member
Join Date: Mar 2005
Location: Northern Oklahoma
Posts: 5,062
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Quote:
Originally Posted by Algoma
They are specials built for the Oasis units and the manufacturer will not supply directly to you. I have just had to replace my Loop 1 pump so I feel you pain.
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Another replacement about 3 weeks ago while in the middle of a vacation. Woke up one morning finding out we had no hot water. Pump was $257 plus $120 mobile mechanic's labor after 8 days of using the Pump By-Pass Switch on the control board for the Oasis. Either Oasis or Newmar should be standing behind these problems longer than one year. Kind of like the problems I've been reading about the Fantastic Fan lids cracking in just over 1 year. No wonder most warranties are only one year.
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07-10-2017, 09:16 PM
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#5
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Member
Join Date: Jan 2014
Location: Oceanside, NY
Posts: 82
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Maybe time to buy an Entegra. 2 year warranty 
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Doug and Patty
2014 DSDP 4038
2013 Harley Triglide on a Hydra-lift
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07-10-2017, 09:24 PM
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#6
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Senior Member
Join Date: May 2009
Posts: 1,399
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Are these pumps failing on the 2016 and 2017s?
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Kert and Angela
2018 provost marathon h3-45
2018 Ford F350
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07-10-2017, 10:41 PM
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#7
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Apr 2016
Posts: 1,412
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Ours failed after 9 months. Newmar is sending me a new one since we were having trouble getting an appointment on the road. There is a switch in the bay with the Oasis heater that turns on the heat loop. This gives us hot water till we change the pump. It does put some heat into the coach.
Paul
2017 Dutch Star 4018
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07-11-2017, 11:58 AM
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#8
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Senior Member
Join Date: Oct 2014
Posts: 1,121
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Mine went kaput on the first day on the road. Leaked boiler fluid into its windings. Happy with Newmar' customer service in arranging a very rapid replacement.
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Phil and Laura (and Sam too!)
2024 Coachmen Beyond 22RB (on order)
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07-11-2017, 12:10 PM
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#9
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Senior Member
Join Date: Nov 2014
Posts: 2,515
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Toured the Oasis factory in June and asked about the pump issue. They indicated they source the pumps from Gorman Rupp in the US. They indicated Gorman use to source these "medical grade" pumps from Germany. They then decided to build them themselves. Gorman had some initial issues but now appear ok. Not sure of the timing but did not seem that long ago the switch was made. Likely in the last few years or less.
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07-11-2017, 06:53 PM
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#10
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 24,125
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I bought a spare today.
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Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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07-11-2017, 11:00 PM
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#11
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Apr 2016
Posts: 1,412
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Quote:
Originally Posted by Dutch Star Don
I bought a spare today.
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Can you share where you bought it from and how much you paid for it? I may buy a spare also.
Paul
2017 Dutch Star 4018
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07-12-2017, 01:42 AM
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#12
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 24,125
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I bought it from ITR (Oasis). Just call them directly. I'm not sure on the price....I didn't ask because I know they are under $300.00, probably some less depending on tax and shipping.
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Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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07-12-2017, 04:19 AM
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#13
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Senior Member
Join Date: Jun 2017
Location: Northeast CT
Posts: 1,202
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just to clarify, this/these pump(s) are to circulate antifreeze on the space heating loop, correct ?
my aqua hot has two pumps on the space heating side....nothing on the domestic hot water side....
ALSO, a question for the newer dutch star owners....
is the stock unit the CH50M or the CH50V ? and does it include the engine pre heat option ?
__________________
2018 Dutch Star 4326 K2 SOLD
2020 LTV Unity 24RL
Doing my part to help control the flying insect population......
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07-12-2017, 07:37 AM
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#14
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Apr 2016
Posts: 1,412
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Quote:
Originally Posted by willipaul
just to clarify, this/these pump(s) are to circulate antifreeze on the space heating loop, correct ?
my aqua hot has two pumps on the space heating side....nothing on the domestic hot water side....
ALSO, a question for the newer dutch star owners....
is the stock unit the CH50M or the CH50V ? and does it include the engine pre heat option ?
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Yes the pumps circulate coolant. There are two pumps on the heating system and a summer loop pump for the hot water.
My coach has the CH50M. The coach can use engine heat when traveling for heat and hot water but the Oasis does not have the option to preheat the engine.
Paul
2017 Dutch Star 4018
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