Originally Posted by OakHillFarm
De-winterizing my 2014 Lacrosse 327RES today. My dealer did the winterize, so I consulted the owner manual before starting this evolution. Drained the holding tanks and filled the fresh water tank. Turned on the pump and no water flow. The pump was running but was making a much higher pitch sound than normal. Turned off pump and hooked up the "city water connection". Got water flow both hot and cold through all faucets, water flow at toilet too. There is no water in the water heater, even took drain plug out (no water) and still no flow when I try to use the onboard water.
Assume there is a bypass valve(s) somewhere, None identified in any of my books/paperwork. Ideas?
Owners manuals for most RV's are pretty much only good for "generic" info and are the same for several different models.
First locate the water pump (may have to remove an access panel). There should be a short piece of hose (maybe 18 - 24" long) that is used to stick into the gallon of RV antifreeze during winterization. There should be a valve on it. If the dealer left it open, close it (quarter turn, perpendicular to the hose). There should also be a valve on the incoming line to the pump from the fresh water tank (probably goes through the floor nearby), open this valve (it was probably closed by the dealer which is necessary to keep RV antifreeze from going to the fresh water tank during winterization). Now turn on pump. It should run then stop when the pressure builds up. BTW, your pump probably won't run if you have city water hooked up and running.
Now, locate the water heater (again, you may have to remove a panel unless it's in the same location as the water pump). There should be a cold water line going in w/valve (white or blue) and the hot water line coming out w/valve (red) and a line between them w/valve. During winterization, the "in" and "out" valves are closed and the one between them (bypass) is opened.
These valves must be reversed to fill and use the hot water tank (open the "in" and "out" valves and close the "bypass valve).
Go outside to the water heater and replace the drain plug (anode rod in some cases) and turn on the hot water in the sink. The water heater should start filling. Open the relief valve until water "just starts to spit out" then close it. Water should now be running in your sink. Turn on the propane and see if the water heater lights and burns clean (blue flame) then turn it off. Next, flip on the electric side of the water heater (once the tank is full). If you have hot water in 10 - 15 minutes, you are good to go.
Geeez! After looking back, I hope I wasn't too long winded or over detailed.
Now, go have
a good time