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Aquahot help

Anyone in the Brownsville/Los Fresnos, TX area that could help troubleshoot my father-in-law's Aquahot?  Symptoms are no heat in the bedroom and the diesel light is going off soon after he turns it on.  Electric is working.  It was just serviced at FOT about a month ago.  He's in a '99 U320 40'

Thanks,
Glen
Glen & Suzie
1998 U320 36'
Build #5366
2015 Jeep Grand Cherokee Overland
2015 ATC Aluminum 20' Trailer
Previous 1996 U295 40'
Motorcade #17546
Stephenville, TX

Re: Aquahot help

Reply #1 –
There's a flowchart for troubleshooting the diesel side of things starting on page 45: http://www.aquahot.com/files/service_manual/AHE-100-02S%20Service%20Manual%20Rev.%20B%209-27-2011.pdf

Do you hear the burner's fan coming on? And combustion?

The lack of heat in the bedroom can be caused by one of the three square cube relays getting dislodged; easy to check visually. When you open the AH case, they're on the right hand side as you're looking at the burner

1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Aquahot help

Reply #2 –
Thanks Elliot...I'm not on site with him in South Texas so I'm unable to trouble shoot.  He's 86 now and can't crawl in the bays like he used to!  I've got a couple of mobile service guys I found on the Aqua-Hot website I'm going to steer him to.  Thanks for responding.  Both of these serve the Rio Grande Valley.

A-1 Mobile Services  336-829-4314
Jack's RV Mobile Service  956-802-7159

Glen
Glen & Suzie
1998 U320 36'
Build #5366
2015 Jeep Grand Cherokee Overland
2015 ATC Aluminum 20' Trailer
Previous 1996 U295 40'
Motorcade #17546
Stephenville, TX

Re: Aquahot help

Reply #3 –
Glen, when he hits the diesel switch, have him go outside and see if it is going through the cycles and getting ignition.  Sadly, it could be the controller, but let's hope it is something easy!  We are in the 20's here in middle TN right now!  Brrrrrr!
Joe & Dottie Allen
Sold!  December 2023.      2000 U320; build # 5645
Our coach " Maxine"
Motorcade #  15922;  Escapee 150950; FMCA F330833; Boondockers Welcome;  Harvest Hosts;  Thousand Trails
'98 U320 from 2000-'06
USAF '62-'66

"Do not spoil what you have by desiring what you have not; remember that what you now have was once among the things you only hoped for." ―Epicurus

Re: Aquahot help

Reply #4 –
If the light is going out shortly after turning it on, it's an indication that the burner is not lighting off.  I would suspect the controller.  I had this problem in the past.  The CB cube controls the individual circulation pumps.  I would contact Rudy.  He has control boxes.
Mike
Mike Brady
'97 U320 SE. #5137
'13 Honda Fit
Willow Springs, MO

Re: Aquahot help

Reply #5 –
Definitely call Rudy, he probably knows much more than any service guy out there and can guide them in what to repair/replace.
Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
no longer 1999 36' U320 build #5522
2013 Rzr 570 & 2018 Ranger XP1000
2006 Lexus GX470
2011 Tahoe LT 4x4
Previous 1998 45' 2 slide Newell, 1993 39' Newell

Re: Aquahot help

Reply #6 –
I found it very helpful to read through the service manual before calling Rudy my first time. It helps get you familiar with what the different components look like. Otherwise he's playing three-dimensional chess while you're still trying to setup your pieces for a game of checkers.
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Aquahot help

Reply #7 –
Quote from: Seven7 –
the diesel light is going off soon after he turns it on.  Electric is working.  It was just serviced at FOT about a month ago. 

Thanks,
Glen


My family's business was heating oil and oil fired heating equipment sales and service in New England.

The Aqua Hot system is a miniature of the house hydronic systems. So where I would begin is with the spark electrode for ignition, then the nozzle.
1992 Foretravel Grand Villa
U225 SBID Build No. 4134
1986 Rockwood Driftwood
1968 S.I.A.T.A. Spring
1962 Studebaker Lark
1986 Honda VF700C
1983 Honda VF750C
Charlie, the Dog was broken out of jail 24 Oct 2023
N1RPN
AA1OH (H)e who must be obeyed.

Re: Aquahot help

Reply #8 –
An interesting side note (for me);  there is a small green light left of the light switch panel in the bedroom.  I have often wondered what it was, but never really pursued it.  It would usually flicker sometimes, and then not.  While in bed I noticed it last night, and discovered that it would flicker when the AH burner was running, and go off when the burner quit.  Go figure...
Mike
Mike Brady
'97 U320 SE. #5137
'13 Honda Fit
Willow Springs, MO