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11-20-2018, 07:14 PM
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#1
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Senior Member
Join Date: Apr 2010
Location: Georgia
Posts: 576
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Engine Preheat
The engine preheat isn’t working on my 14 Anthem. Light on Aqua Hot panel is green, which I assume is indicating an ok pump. Any ideas where to look next.?
Thanks, GrAndy
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11-20-2018, 08:34 PM
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#2
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Senior Member
Entegra Owners Club
Join Date: Jan 2015
Location: Caldwell , Ohio 43724
Posts: 1,443
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SAS30,
Do know if the two coolant valves are open at the engine?
This system works the other way as it will heat your hot water when on the road. So do you have hot water after a day of travel. If you don't your valves are probably closed.
__________________
Gasman 2
2016 Anthem 42 RBQ Sold June 2021
Toad 2017 GMC Sierra 4X4
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11-20-2018, 08:58 PM
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#3
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Senior Member
Join Date: Apr 2010
Location: Georgia
Posts: 576
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Quote:
Originally Posted by Gasman 2
SAS30,
Do know if the two coolant valves are open at the engine?
This system works the other way as it will heat your hot water when on the road. So do you have hot water after a day of travel. If you don't your valves are probably closed.
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It was working. I didn’t notice that the engine heat was no longer working until after a visit to both Spartan and Entegra summer of 2017. It’s possible someone at either place could have closed the valves. Will look and see if I can locate said valves.
Thanks
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12-09-2018, 11:10 PM
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#4
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Senior Member
Entegra Owners Club
Join Date: Nov 2013
Posts: 602
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Fyi...I actually had pump #2 replaced that showed green on the panel, but was not pumping. The pump was vibrating, but fluid was not flowing through the pump. I thought it was the check valve, but it was the pump. After the simple pump replacement, all was well.
Jim
__________________
Jim & Debra Stephenson
2015 Entegra Anthem 44B
"Enjoying America One Day at a Time!"
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12-10-2018, 06:07 AM
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#5
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Senior Member
Join Date: Sep 2012
Location: Springdale, Arkansas
Posts: 170
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Concerning the engine producing heat while driving, does the switch for preheat have to be switched on or does it just automatically happen? Thanks
__________________
2016 Entegra 45B Cornerstone, 2018 Jeep Grand Cherokee Summit
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12-10-2018, 06:21 AM
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#6
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Senior Member
Entegra Owners Club
Join Date: Apr 2007
Location: SW FL
Posts: 31,620
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Quote:
Originally Posted by Razorrick
Concerning the engine producing heat while driving, does the switch for preheat have to be switched on or does it just automatically happen? Thanks
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It just automatically happens. Preheat opens the valve (turns motor on) to pre heat the engine only. A label needs to be added to that switch, "engine only", that question comes up a lot..
__________________
Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold
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12-10-2018, 06:27 PM
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#7
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Senior Member
Join Date: Apr 2010
Location: Georgia
Posts: 576
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Quote:
Originally Posted by Razorrick
Concerning the engine producing heat while driving, does the switch for preheat have to be switched on or does it just automatically happen? Thanks
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NO, As a matter of fact, I was told by PJ at one of the factory training sessions that depending on how the hoses are attached at the engine, if you turn the engine preheat on with engine running the flow from the engine could be working against the Aqua Hot pump.
It is my understanding that the HOT engine coolant is pumped through a loop in the Aqua Hot by the engine water pump when running.
I have heard others state “there is a dedicated electric pump on the engine that does this also”. If anyone on here knows whether or not this is true, please chime in.
GrAndy
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12-10-2018, 07:05 PM
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#8
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Senior Member
Join Date: Nov 2006
Location: Western NY
Posts: 6,136
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Quote:
Originally Posted by SAS30
NO, As a matter of fact, I was told by PJ at one of the factory training sessions that depending on how the hoses are attached at the engine, if you turn the engine preheat on with engine running the flow from the engine could be working against the Aqua Hot pump.
It is my understanding that the HOT engine coolant is pumped through a loop in the Aqua Hot by the engine water pump when running.
I have heard others state “there is a dedicated electric pump on the engine that does this also”. If anyone on here knows whether or not this is true, please chime in.
GrAndy
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I believe the only pump that circulates coolant for coach heat is the engine water pump...
You not only do not need the preheat switch on... you don't need a preheat sw.
Those not equipped w preheat option (& sw) still provide coach heat while running.
__________________
Don & Marge
'13 Newmar Ventana 3433 - '14 CR-V TOAD
'03 Winnebago Adventurer 31Y - SOLD
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12-10-2018, 07:32 PM
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#9
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Senior Member
Entegra Owners Club
Join Date: Apr 2007
Location: SW FL
Posts: 31,620
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The engine preheat pump is on the back side of the Aqua Hot. The carpeted panel on the P/S of the Aqua Hot has to be removed to access it.
__________________
Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold
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