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11-01-2015, 06:39 AM
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#1
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Senior Member
Join Date: Oct 2013
Location: st george
Posts: 1,387
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aqua hot not heating the air out of vents
Hi all-- we just bought a 2014 entegra anthem-
turn the heater to on position on the thermostat ( zone 1 ,2 and 3 ) leave it on the gas setting. the blowers kick on fine and blows air but it does not get warm.
aqua hot fires up fine- the water portion of the aqua hot heats up great. just the heating part from the vents.
anybody know what I could possibly check before takeing it somewhere to be looked at - the coach was sitting for awhile-
thanks
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11-01-2015, 06:50 AM
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#2
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Senior Member
Join Date: Feb 2013
Location: Graham, WA
Posts: 772
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When you say that it "fires up", I assume that you're referring to the diesel burner. If that's the case, then check your circuit board for green lights. If the zone lights are green, would seem that the check valves are probably stuck from not being used. No circulation, no heat. A sharp rap with a light hammer will likely free them up.
For all things AquaHot, check the forum at
Aqua-Hot Questions
Roger knows all!
Good luck,
__________________
2006 Gulfstream Friendship G7, Cat C7 and Allison 6 spd
Honda VTX and Cruiser Lift on the back
Blue Ox Aladdin, Brake Buddy, 2019 Chevy Blazer RS toad
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11-01-2015, 06:57 AM
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#3
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Senior Member
Join Date: Oct 2013
Location: st george
Posts: 1,387
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do you mind telling me where these check valves would be that I need to tap with a hammer? makes sense- thank you
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11-01-2015, 07:20 AM
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#4
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Senior Member
Join Date: May 2012
Location: Roseville MN sum / La Feria Tx winter
Posts: 790
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You don't say what model you have but in mine you pull the cover on the Ah and you will be able to feel the pipes and see if they are hot If not you will see the wires to the valve and just tap on valve body and see if it opens. Do not hit the plastic or wires Just the brass
__________________
Sheri & Don 2003 Dynasty 42" regal ISL 400
2007 Goldwing Trike Gmc 4X4 w/ autoloader for trike
Lets go we got it all loaded.
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11-01-2015, 07:40 AM
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#5
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Senior Member
Join Date: Oct 2013
Location: st george
Posts: 1,387
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I have the aqua hot 450 -- I had a 03 dynasty which I believe the aqua hot unit was the early design- my guess totally different than these new ones, that being said any suggestions as to where these check valves might be?
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11-01-2015, 07:50 AM
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#6
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Senior Member
Join Date: Feb 2013
Location: Graham, WA
Posts: 772
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They are at the outlet of the pump. Brass fitting with the PEX lines connected. Give Roger your model number at the AquaHot forum and he'll give you the facts.
__________________
2006 Gulfstream Friendship G7, Cat C7 and Allison 6 spd
Honda VTX and Cruiser Lift on the back
Blue Ox Aladdin, Brake Buddy, 2019 Chevy Blazer RS toad
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11-01-2015, 07:52 AM
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#7
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Senior Member
Fleetwood Owners Club American Coach Owners Club
Join Date: Mar 2011
Posts: 6,760
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You did not answer the burner question asked by Dennis4809. If it is cold and you are using electric only, you need to turn the burner on.
__________________
2014 American Eagle 45T
DD 13, 500 HP
Pulling a Honda CRV
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11-01-2015, 08:00 AM
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#8
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Senior Member
Country Coach Owners Club
Join Date: Apr 2015
Location: Alberta
Posts: 1,591
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I have the 450-DE1, there is a low temperature cut-off switch in the domestic water supply (on demand) inlet; if this switch measures a lower temperature (i.e. cold water flowing to the inlet) it shuts off the circulation pumps for the heating zones. The on demand system has priority over the coach heating,
My sensor went bad and I had to replace it to get heat into the coach again. It always measured low.
Aqua hot provides all the manuals online - here is the manual for my 450-DE1, it also applies to 450-DM1. Great pictures showing locations of everything, including check valves!
Hope this helps,
Brian
__________________
Towr: 2007 Country Coach Allure 470 - 37 Sunset Bay Cummins 400 ISL, Coach #31563
Toad: 2016 F150 King Ranch - 3.5L EcoBoost 4x4 Supercrew (curb weight 4,775 lbs)
Toad: SOLD 2007 Jeep Grand Cherokee (yes, it has a Hemi) (curb weight 4,720 lbs)
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11-01-2015, 05:40 PM
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#9
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Senior Member
Fleetwood Owners Club American Coach Owners Club
Join Date: Mar 2011
Posts: 6,760
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Quote:
Originally Posted by BrianGlenn
I have the 450-DE1, there is a low temperature cut-off switch in the domestic water supply (on demand) inlet; if this switch measures a lower temperature (i.e. cold water flowing to the inlet) it shuts off the circulation pumps for the heating zones. The on demand system has priority over the coach heating,
My sensor went bad and I had to replace it to get heat into the coach again. It always measured low.
Aqua hot provides all the manuals online - here is the manual for my 450-DE1, it also applies to 450-DM1. Great pictures showing locations of everything, including check valves!
Hope this helps,
Brian
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Yes, on the AH 450 series, the call for hot water will shut off the heating availability until the demand for hot water stops. On the AH 600, you can have hot water and heat at the same time...not with the 450 series.
__________________
2014 American Eagle 45T
DD 13, 500 HP
Pulling a Honda CRV
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