hot water tank

[brian ayerst]

2008 3465, my hotwater tank has a humming sound when it is heating, can't recall hearing it as loud before, switched to propane and humming stops,could this be the start of something bad. thanks brian

[Trailer Trash 2]

Mine did that too a while back, I think its the AC heating eliment. I'll be watching some of the replies with you for other answers.
I do know that my rod does not need replacing, its new about 5 months, and only 2 uses. it also has stoped making that noise.

[Ozz]

I would drain it, clean it real good, replace the element, repace the Temp and Pressure valve, and the drain plug. It's time anyway. I overhauled mine before this trip, glad I did. (2007 3400RL)

[DQDick]

X2. Buildup of crud on the element can cause that.