Forum Discussion

Explorer

Mar 06, 2017

Attwood Hot Water Heater Noise

Hi All, We just unwinterized our new to us 2015 40E, which we purchased over the winter. First, I found that I have no heating on A/C on the Attwood hot water heater, but it heats great on gas. I checked the obvious coach circuit breaker and it was not tripped. On top of that, when you run hot water from the faucets or shower, it make a high pitched whistle noise. Not sure if the two issue are related. I would like to go back to the Camping World dealer and see if they will make it right, since we were unable to test the water system in the dead of winter during the purchase process. Any suggestions on a fix, or opinion on going back to the dealer on this? Thx, Jeff

Class A

14 Replies

newman_fulltime
Explorer II
Mar 06, 2017
Did you open the bypass valves on the water heater?
10forty2
Explorer
Mar 06, 2017
My coach has a red, lighted switch on the wall above the sink in the bathroom to turn the water heater on/off. There is also a main switch inside the cabinet below, right at the water heater that must be on for the water heater to work. You might want to look around for a switch that's hidden from plain view.
janstey58
Explorer
Mar 06, 2017
It is a medium pitched whistle, not quite as high pitched as a tea kettle. High pitched Hum would be a good description. This also occurs on the water pump pressure, without city hookup, so I don't think it is an over pressure issue.
crasster
Explorer II
Mar 06, 2017
Okay is the whistle noise a "whistle" like sounds like a tea pot or is it more like a high pitch hum sound? Are you running a water pressure regulator as these can generate a sound such as this - also so can a water hammer reducer.