Forum Discussion

Explorer

Nov 16, 2014

Whining hot water heater

Have a new Coachmen Freedom Express with an Atwood Gas/Electric water heater. I have had this water heater on several other RV's, but this one makes a high pitched whine. Makes this noise on gas or electric. The noise seems to be coming from the circuit board (Directly to the right of the thermostat, and above the burner tube).
The noise is loud enough to be heard inside the RV, and is somewhat annoying. Any ideas?

CT51

23 Replies

ScottG
Nomad
Nov 16, 2014
Mine did it when new but eventually quit. It doesn't hurt anything when it whines so I never worried about it.
tll
Explorer
Nov 16, 2014
I have the exact same high pitch whine coming from the Attwood water heater on my 2015 Starcraft. It is on my list of things for the dealer to look at this spring. It is very bothersome at times.
newman_fulltime
Explorer II
Nov 16, 2014
iwould say its one of the checkvalves is bad and is vibrating instead of opening all the way
change it out the noise should go away