Aqua Hot Service

[Rgrafty]

I am thinking it is time to change out the fluid in my Aqua Hot unit in my 05 42 DS04. Has anyone found a good plan for draining all the lines and registers? Is there a service bulletin or any information on this?

Bob

[Roger Berke]

It is not necessary to change the coolant in your Aqua-Hot. Your Aqua-Hot is a closed system and the coolant is not contaminated by engine combustion byproducts. The only recommendation that Aqua-Hot makes is to periodically check the PH of the coolant. As the coolant ages, it becomes alkaline. The coolant PH should remain between 7.5 and 9.3. There is a service bulletin on coolant from Aqua-Hot that is available. Send me a personal email and I will send it to you.

You should replace the fuel filter and nozzle on your Aqua-Hot on a periodic basis. Aqua-Hot recommends that this should be done annually to maintain optimum performance.

- Roger Berke -
Moderator - HydronicRVHeating : Hydronic-RV-Heating
We will be at the Albuquerque Balloon Festival - September 29 through October 12

[BigSkyBob]

Also don't forget to clean the inner part of the combustion chamber, the outer combustion tube and clean the face of the photo cell.

[Roger Berke]

There are step-by-step directions on how to do a complete annual service on the website listed below in the ‘files’ section. You will need to join the group to access this file.


- Roger Berke -
Moderator - HydronicRVHeating : Hydronic-RV-Heating
We will be at the Albuquerque Balloon Festival - September 29 through October 12