I have an Atwood gas electric DSI 6 gallon hot water heater. When I turn WH on electric the control board makes a steady high pitched tone. Heating element is working and pulls about 12 to 13 amps. This tone is pretty loud and can be heard several feet away. Is it normal for the control / circuit board to make this sound. This is a brand new rig.
Ours does not make this sound. We have never heard it.
Frank & Brenda
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