Does the water heater fill automatically when i fill my potable water tank? Or does it fill when the water pump switch is turned on? Or does it fill when the main switch to the water heater is turned on? How does this system work? First time using my new-to-me 2855 and i am trying to figure out if things arent working or if i am not using them correctly.
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It fills when you turn on the electric pump. This will take a minute or two. If possible, do this before you finish filling your water tank as the heater holds a significant amount compared to the fresh water tank capacity (6 gallons in the heater and 20 in the storage tank on a 246).RMSLLC wrote:
Does the water heater fill automatically when i fill my potable water tank? Or does it fill when the water pump switch is turned on? Or does it fill when the main switch to the water heater is turned on? How does this system work? First time using my new-to-me 2855 and i am trying to figure out if things arent working or if i am not using them correctly.
2007 Discovery 246
300mpi BIII
Welcome island Lake Superior -
Yea you have to turn on your pump but it also helps to open a faucet to purge the air a the same time
1989 Avanti 3450 Sunbridge
twin 454's
MV Mar-Y-Sol
1979 Bayliner Conquest 3150 hardtop ocean express.
Twin chevy 350's inboard
Ben- Jamin
spokane WashingtonComment
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You must turn on your water pump to pressurize the water system before turning on the water heater on the electrical panel. The heating elements in the hot water tank will burn out if allowed to heat dry for an extended period. If it's too late already, I think you'll hear some advice on this board about element replacement.
Simo
2002 2855 350MPI Bravo III on Lake Champlain -> SOLD!
Shameless lurking on Lake Keowee with a Harris Cruiser 210 Tritoon/Mercury 150XL EFIComment
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I just bought the boat and the tanks were all empty. I filled the FW tank with a hose and then turned on the water pump and it kicked on. I never turned on the water heater, however i turned on the hot and cold water at the faucets and cool water came out. After shutting everything off, i went to use the sink about 3 hours later, i turned on the water pump and opened the faucet and no water flowed, and the pump never came on. I was thinking maybe the water heater was holding pressure and keeping the water pump from turning on? There is power at the pump so its not a fuse problem or wiring issue. Before i rip out the water pump, im trying to rule out the other possibilities. It worked fine at first and it sounded normal. Im having a hard time accepting this as a dead pump.
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I assume you tried the same taps you had opened and got cool water from earlier. Did you try other taps?
Disconnect the water output of the pump and try turning it on and see if it runs.
Also when you disconnect the water out pay attention to see if there is still pressure or not in the water line.
If the pump works and the line had pressure you likely have a clog somewhere.
Jim McNeely
New Hope a 2004 Bayliner 305 Sunbridge Express Cruiser
Twin 5.7s with Bravo2 drives
Brighton, Michigan USA
MMSI # 367393410Comment
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Perhaps you have a water filter somewhere. Mine clogged and I had to bypass it til I could replace the filter. Mine was in the area of the water heater and pumps.
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Looking down under the stairs, this picture below shows my shower sump, the toilet seacock, and at the top of the picture is the fresh water pump. There is a gray coupler on one side, does anyone know if this is a threaded connection? Push lock? How does it work? Its snug by hand when i try to turn it. It also leaks a little bit when i turn the fitting. And would this be the "in" or "out" side? In this picture, the top of the picture is Aft. The bottom of the pic is forward.
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Do you have a water heater by pass valve for winterizing that wasn't turned back to where it belongs or is there a valve that shuts off the water heater? Not normal but maybe some one installed one some reason.
1989 Avanti 3450 Sunbridge
twin 454's
MV Mar-Y-Sol
1979 Bayliner Conquest 3150 hardtop ocean express.
Twin chevy 350's inboard
Ben- Jamin
spokane WashingtonComment
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No, i cant find any valves or bypasses going to or from the water heater. I will try un-hooking the outlet hose from the pump and seeing if it turns on. I am a little nervous about unhooking the hoses from the pump, as i cant tell how they are attached. They look like theyre threaded somehow? But it seems like most of the people talking about them have some sort of a push connector.
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The grey hex shaped fitting is a simple threaded coupling.
The white elbow to the left of the grey coupling appears to be a push in fitting. You push down on the ring / collar and the tubing slides out.
Since yours has likely been in a long time push down on the collar and hold it down, then push the tubing in a little and then try pulling it out. You need to keep the collar down until the tubing is out.
Jim McNeely
New Hope a 2004 Bayliner 305 Sunbridge Express Cruiser
Twin 5.7s with Bravo2 drives
Brighton, Michigan USA
MMSI # 367393410Comment
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I assume that is teflon tape used on the threads on the gray coupler. It appears to have a very slow leak where the coupler meets that elbow. Turning the connection by hand made it worse. I will unscrew it here to test my pump issue, and hopefully re-tape and re-connect this fitting without making anything worse!
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