Access to back of Hydro Hot

[Bob Jae]

After our last trip I am smelling engine coolant in my Hydro Hot compartment.  I can not get my head into the compartment above the hydro hot to look at the backside where the engine preheat lines come in.  I tried to hold my smart phone back there to take a picture.  That worked but all I see ore hoses.  There appears to be an access panel back there.  My guess is you have to put out the drivers side front slide and then crawl under the coach.
My question is does that panel come off and does anyone know how or what holds it in place?  Has anyone had any engine coolant leaks back there?
Thanks for any help you can offer.

[Bill Sprague]

On our '04 there is a sheet metal panel in the back that is held on by about a dozen sheet metal screws.  They are quick work with a screw gun or driver/drill.  I've had water leaks back there, but not coolant.

[Orman Claxton]

 Bob
 As Bill stated you can access the rear by crawling underneath, several screws on the metal cover,
Engine coolant probably be comming from a Hose,Hose fittings, Engine preheat pump,
Not an easy access, but do-able, easier if the slide is extended
Call me in needed