General Boards > Sources for Suppliers, Parts and Maintenance Materials
Hydro Hot Service
Bill Sprague:
--- Quote from: Bill Jourdain ---..... I'm not sure when this system was last serviced, but in the three weeks I've owned the coach I've tested it and noticed several misfires and a lot of black smoke when it finally ignites. It therefore appears that it is due for service before I use it much more.
Thanks.
Bill
--- End quote ---
It might not be "misfires". It can sound like it is running even when it is not burning. It is due to how it gets read to burn and purges itself between cycles. Nor is it supposed to run with continuous burning. It burns to heat the fluid and the flame stops when it thinks the fluid is hot enough. Then, the hot fluid warms the air or water until the fluid is too cold. Then it lights up again, typically with a sputter sound and a puff or two.
If you can stand the heat or don't mind running a lot of hot water down the drain, run it for several hours. See if you can work it hard enough to run a few gallons of fresh diesel through it. My understanding is that there is a valve (or two) that can get sticky from lack of use causing minor drips. So, on start up, there may be a little extra diesel in the burner that causes some burping and belching.
That said, it is normal to start up with a little smoke and a little sputtering.
My wife, early on, pointed out how clever the Beaver engineers were at putting the furnace exhaust outlet where the smoke and fumes come from below and adjacent to here bedroom window. Even with the window closed, she smells it seeping through the cracks and slide seals. Anybody parked next to us (in a politely equipped propane powered RV) gets to smell it too. Consequently we have adapted a Gen-Turi generator exhaust extension to the HydroHot. Now the stink and carbon monoxide goes mostly skyward and away from the bedroom and nice neighbors.
The other Bill
Jim Shaw:
Does anyone know where I can get the directions on changing the nozzle? Mine is working fine but has started to smoke a lot.
Thanks Jim
Bill Sprague:
--- Quote from: Jim Shaw ---Does anyone know where I can get the directions on changing the nozzle? Mine is working fine but has started to smoke a lot.
Thanks Jim
--- End quote ---
I sent the service manual that applies to mine to Tim Bently who put it on the BAC main site under "Coach Assist".
Aqua Hot puts their manuals on their website, if you want one that applies to yours.
Another source is a website run by Roger Burke who has a retirement career servicing and sellling parts for AquaHots. He has some guides and other downloadable service information. Roger helped me a couple times before I met BAC member Orman Claxton.
To change the nozzle, you move some wires and hoses out of the way, remove three bolts holding the burner together and take a couple wrenches to the nozzle to get it off.
Bill
Jim Shaw:
Thanks Bill, I will check the web site and download the manual if it is available.
Bill Sprague:
--- Quote from: Jim Shaw ---Thanks Bill, I will check the web site and download the manual if it is available.
--- End quote ---
Look here: http://www.aquahot.com/Library.aspx
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