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Aqua-hot burner not starting after Racor Filter change.

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David T. Richelderfer:
I can tell if our AquaHot ignites by seeing its exhaust (usually a bit white until it warms up, then clearing) through the rear-facing streetside dining room window. I can also run outside, on the streetside, and feel the exhaust. If it's a warm/hot exhaust, then it's burning diesel. With interior audio components off, I can hear the burner operating.  Ours is an 02S.

Steve Huber:
Mike,
The "kitchen" switch Eric is referring to is located in  the panel just below the kitchen sink (usually on the left side of it). Most have 3 switches: Diesel, Electric, Preheat. For your testing you want to select Diesel.
Steve

Mike Sulley:
Hello David and Steve,

 I thank you for trying help me out and add to my knowledge.  When I bought the coach a couple years ago, we received no explanations about the Aqua-Hot and what manuals we received were scattered everywhere.

David for first several outings with our "new" coach over two seasons, every time I started the coach engine,  I would always see the gray exhaust of the Aqua-Hot firing up.  I never had to do anything.  I always attributed this to the main thermostat on the cabinet above the couch being switched on.  I never turned it off.

Steve my wife tells me there is a single switch under the sink on the left behind the waste basket.  She thought it might have to do with the instant hot water fixture on the counter top next to the sink.  But the switch didn't seem to have any effect.  We never got any hot water out of it.  So she turned it off.  Evidently, that was about the time of our last trip of the season.  And curiously, we had no heat.  She just brought this to my attention after reading Eric's comment about the "kitchen switch".  Note we have always had hot water from the AH.  I turned it off with the breaker in the box on the back wall of the bedroom when I started trouble shooting the diesel fired AH.

It would really be helpful to find a manual for "our" AHE 100-01S Aqua-Hot system.  The 100-02S manual is the only one I have ever found.  I have never looked in the Beaver Forums Manual library.  The security sign on requirement has always intimidated me.  I did call AH in Colorado and they could only provide with the 100-02S manual.

I am still waiting for my 5/16" primer bulb.  Once it arrives, I will temperarily cut it into the diesel return line and circulate diesel thru the system back into the supply tank.  Then go from there.

Once again, thank you so much for your reply's.

Mike Sulley
 

Gene Obie:
You should be able to find the manual for your unit here --> https://heatmyrv.com/pages/resources__manuals?

It's seems 01 and 02 are the same manual.

Steve Huber:
Mike,
The switches I was referring to are not under the sink by the waste basket. They are on the cabinet panel in front and just below  the sink. Poor choice of words on my part. See figure 2 on page 4 on  this link for a picture of the switch panel. https://cdn.shopify.com/s/files/1/0851/3182/1360/files/AHE-100-03SAqua-HotOwnersManual09-03.pdf?v=1704856391
Coach Assist has links to the 01S service manual and as Gene noted the op manual for the 01S and 02 S is the same so your manual should be accurate.
If you are having issues accessing our documentation let us know and we can step you through the process as needed.
Steve

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