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skyguy62 · 07-21-2006, 07:10 AM

Condensation water from the rear AC unit, running forward under the coach on the concrete pad masked a slow developing problem. We have been on our lot in ORA Rancho CA since purchasing it at the March Ralley. We were only using the electric water heat function, so I only checked coolant level on the first of each month. I added to the cold level twice before noticing a drip coming out the exhaust manifold.
Taking the front cover off revealed coolant water in the tray no apparent source could be found. With all the wires shoved in and the space tight the problem appeared to be a crack in the boiler tank. The second day of removing and moving parts around resulted in an increase in the flow of water. Then I found the plastic drain plug assembly wiggled (all fittings are brass or copper except the plug ??)and required 4 turns to reseat. A mobile repair service passing by had a replacement plug and rubber washer. The end of the plug was breaking down. I can only assume the heating and cooling cycle of the metal tank had something to do with the plug working loose as the coach had not moved for 3 1/2 months.
Three calls to the hydro-hot customer service center were not returned and attempts to access the web site were unsuccessful, are they still in business? Any guess why WRV did not install door struts in the hydro hot bay?

skyguy62 · 07-21-2006, 07:10 AM

Condensation water from the rear AC unit, running forward under the coach on the concrete pad masked a slow developing problem. We have been on our lot in ORA Rancho CA since purchasing it at the March Ralley. We were only using the electric water heat function, so I only checked coolant level on the first of each month. I added to the cold level twice before noticing a drip coming out the exhaust manifold.
Taking the front cover off revealed coolant water in the tray no apparent source could be found. With all the wires shoved in and the space tight the problem appeared to be a crack in the boiler tank. The second day of removing and moving parts around resulted in an increase in the flow of water. Then I found the plastic drain plug assembly wiggled (all fittings are brass or copper except the plug ??)and required 4 turns to reseat. A mobile repair service passing by had a replacement plug and rubber washer. The end of the plug was breaking down. I can only assume the heating and cooling cycle of the metal tank had something to do with the plug working loose as the coach had not moved for 3 1/2 months.
Three calls to the hydro-hot customer service center were not returned and attempts to access the web site were unsuccessful, are they still in business? Any guess why WRV did not install door struts in the hydro hot bay?

anthem4us · 07-22-2006, 08:16 PM

Hi skyguy62
Sorry to hear about your leaking problems on the Hydro-Hot. I didn't get struts on the door where my unit is installed either. I questioned the dealer where I bought it and they said they could not install them according to the RVIA.
By the way, we miss not being there enjoying the hot weather. Larry & Beverly

Gary Krieg · 07-23-2006, 05:44 AM

Skyguy62, we had exactly the same problem except the drain plug assembly came off in my hand and I had a major leak on my hands. I called Vehicle Systems and told them I was going to just put a brass cap on the tank fitting. They said that that is what they would do since they would prefer that people drain the tank by siphoning the tank from the top rather than using that drain. I'm not sure why they prefer the siphon method that is just what they told me.

EngineerMike · 07-23-2006, 09:07 AM

I have struts on my HH bay door.

Wayne R · 07-23-2006, 12:13 PM

I moved 1 strut from the right side door of the same bay to the HH door. Easy cheap fix, although 2 struts would be better. I plan on adding 1 to each side I just need the brackets that I was unable to get while at the factory. I have the struts sense mine were replaced when I added the stainless steel trim.