BAC Forum
General Boards => Technical Support => Topic started by: Lyle Johnson on April 02, 2020, 06:21:18 PM
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Brother has a 1996 marquis...
We are in Arizona at this time.
Have been working on Aqua-Hot for some time but she will still not fire.
Went through the manual for starting sequence... control box...
Installed new one. Still no fire.
Any techs around in Arizona?
Thanks
Lyle Johnson
Oregon
2000 marquis
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Lyle, Where are you in Arizona? Fred
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We've used Accurate RV in Parker, AZ. He is an authorized AH Technician
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Fred,
Cottonwood...
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Arizona is about 14% larger than Oregon. You will want a technician from near your RV's location. I have used Accurate RV as well for some maintenance issues - Norcold fridge, etc.
http://www.aquahot.com/service-help/service-locations.aspx
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Try A-1 Mobile: https://a1mobilerv.com/
I doubt these fellows are anywhere near Quartzite now, but contact them for any help they might offer:
John Carillo https://heatmyrv.com/
Lloyd DeGerald lloyd.degerald@gmail.com (501)258-8426
Or look up Beaver Club member, Orman Claxton’s, number in the member directory. When he retired he posted here that he’d be glad to help recommend someone. http://beaveramb.org/forum/index.php?topic=7376.0
Also peruse any troubleshooting document(s) here in the Coach Assist area, Heating and AC Systems, of the Private BAC Members Only section.
Joel
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Thanks all ... working on it. Persistence.
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I forgot that I had the following service instruction on one of my iPads. It’s 10 years old but still relevant, and it may offer enough guidance to where you may not have to pay for a tech. It could be just a “gunked up” float switch or low fluid, common issues covered in the article.
http://www.rvtechmag.com/tech/38_aquahotsvc.php
Joel
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Thanks Joel,
I’ll take a look...
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Lyle,
Have you aligned the electrodes? If so, you can try firing it with the end of the burner chamber off. Be careful as it will shoot out a good flame when it fires but it also allows you to see what is going on. I had to do this with the unit in my 01 to find that I had a faulty electrode that wasn't firing. Just be very careful. It shoots the flame straight out from the nozzle (assuming you have a new/good nozzle).
Steve
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Note: I do not know the symptoms of your Aquahot's failure.
When I had our Aquahot "annual-ed" in Idaho Falls last September, it was noted by the technician that the burner chamber was very sooty and the flame sensor was also covered with soot. When I described the symptoms of the Aquahot's failure, he suspected the reason it would fire up and run for only a few minutes was because the flame sensor was unable to see that the burner had ignited. Thus the flame sensor, seeing no flame, thought the burner had failed to ignite. Without a flame, the Aquahot SHOULD shut down and stop spewing diesel into the burn chamber.
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Steve,
Guess I should give a little more info😁
New nozzle, aligned electrodes, checked photo cell, new aqua stats, filter, new coil, new control box, .
Cleaned burner tube, tested new nozzle spray, checked electrodes with fuel pump disconnected, worked good. I was thinking of trying the test you mentioned couple of days ago (saw a video of it on YouTube a couple of days ago) but thought “wow” that’s a lot of flame!
Well... I’ll maybe wait on that... well maybe tomorrow...
Will keep on trying...Lyle
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Four or five years ago we were having problems getting our Aquahot to fire up and stay fired up. Sometimes it would fire up, sometimes it wouldn't, and the problem was getting worse. I had it "annual-ed" at that time. The technician had to replace both the Wabasto control box and the ignition coil to make it work without failure. At the time, the coach was under an extended warranty which we purchased when purchasing the coach - $5,000 for a 4-year warranty. The warranty company had a guy come to the technician's place to make sure the requested parts and labor were necessary. The technician had to put the Aquahot back together and try to fire it up to prove the parts were needed to fix the problem. As I stated, the problem was intermittent. It took about 30 or 40 starts to finally get a mis-start. The warranty representative immediately said "get the parts" once the Aquahot mis-started. I remember the technician telling me we were lucky it mis-started because in the heat of the summer afternoon, it would likely usually start okay. But trying to start it on a cold morning or in the cold season, it would likely not start.
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Lyle,
Thx for the info. From what you described, I'd be looking for a fuel problem.
Steve
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If you cant get a mobile tech National 1 does Aqua Hot work in Surprise or Las Vegas
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Lyle
I think Steve is right the fuel line coming from the fuel tank may be cracked and sucking air or it could be sucking air at the fuel filter.
Either way the aquahot is temperamental with fuel delivery it needs clean fuel no bubbles or it will be intermittent and flame out.
Try running the unit with the feed pickup line running out of a five gallon fuel can of diesel this will check off fuel delivery as the problem.
Remember the unit will be returning fuel back to the coaches fuel tank so make sure you have room in the tank to take the extra fuel .
Hope this helps
Eric