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Old 01-11-2021, 05:43 PM   #1
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Aqua Hot vibrating more then normal

My Aqua Hot vibrating more then normal. I have checked the motor housing and it is nice and tight. (Can't jiggle it)

Any ideas where to look next?

Tim
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Old 01-11-2021, 06:54 PM   #2
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Motor housing itself not vibrating while running? Bearings going?
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Old 01-11-2021, 07:16 PM   #3
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You out in Quartzsite?

Last year at QZ, there was a mobile AH guy that came around and serviced several units. I watched him and he's knowledgeable and quick. I can track down his contact info if you need it.
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Old 01-11-2021, 07:41 PM   #4
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Quote:
Originally Posted by 96 Wideglide View Post
Motor housing itself not vibrating while running? Bearings going?
Maybe, But I had it serviced this past summer and he checked everything as I watched him and he showed me how. Thank you

You out in Quartzsite?

"Last year at QZ, there was a mobile AH guy that came around and serviced several units. I watched him and he's knowledgeable and quick. I can track down his contact info if you need it."

Yes I'm in QS. I will look at it again tomorrow. This time I will have it running while I'm down there checking it. If you can PM me the his info that would be great. Thank You.
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Old 01-11-2021, 10:04 PM   #5
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Tim, there is a great video on YouTube on changing the Aqua Hot pump bearings.

It was done by Mike (ZMotorsports).
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Old 01-11-2021, 10:13 PM   #6
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Is the cover on tight?
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Old 01-13-2021, 12:23 PM   #7
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The burner has a small explosion proof electric motor on it that when called for burner operations, turns on which spins a small impeller or fan to produce air for combustion. Also attached to that shaft is the fuel pump which pushes the fuel through the nozzle for combustion.

Guessing here not being able to listen to it myself but, either the motor is going bad or the impeller (fan) is out of balance. You have to take it pretty far apart to know which it is but certainly doable.

The motors are pretty expensive, the fan is not. The bearings for the fan are cheap also. If this is a new situation, it is most likely failing bearings in either the motor or impeller.

I doubt it is the fuel pump, it is very small and has such little rotating mass I would be surprised if you could tell it was failing unless it was dripping fuel.

Assembly, fan motor fuel pump and housing with impeller inside:
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12 volt motor:
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Old style fuel pump (depends on the year).
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Impeller itself removed from the housing. It is possible it has failed or has something lodged in it causing an out of balance issue.
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Hope this helps.
Windecker

Quote:
Originally Posted by Timaz View Post
My Aqua Hot vibrating more then normal. I have checked the motor housing and it is nice and tight. (Can't jiggle it)

Any ideas where to look next?

Tim
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Old 01-13-2021, 01:58 PM   #8
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Update:

I went in the compartment with the Aqua Hot this morning while it was running and there isn't any problem with it. I'm thinking I had the generator running at the same time. It's running smooth. Thanks to everyone for their help.

Tim
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