Atwood water heater high pitch noise
My Atwood water heater model GC6AA-10E makes a high pitch noise when operating on electric. Is that a sign that the heating element is going bad? (Is producing hot water.) The heating element is on t...
Forum Discussion
Dr Jay wrote:
Had a very similar problem with my Atwood. The noise was corrected by replacing my two one-way check valves. The noise was loud and occurred weather it was propane, electric or both.
READ the post! He was NOT running water. Your problem only happened when you ran water. HIS problem is the whine the circuit board produces when heating on 120 electric. And your problem was not a Atwood fault, but the OEM that installed the check valves. You only need the check valve on the OUTPUT hot exit of the water heater. Unless you have a hybrid water heater bypass system, you do not need the check valves at all. If you want to use check valves install the larger BRASS valves. They have the 1/2 inch threads, but the check valve needle is larger than the plastic ones and will not produce that noise. The noise is caused by the water trying to rush past a too small path. Doug
