This is normal in operations and will not affect the water heater s function or any components.
High pitched noise from rv water heater.
We have a new potting on the circuit board and new circuitry underneath that causes a humming noise.
If it is hot to the touch this may be the source of the sound.
The noise was only present when the water heater was using electric power not lp gas.
This is not a defect with the water heater or components.
High pitched noise since this type of noise often involves pressure in your water heater the first step to solve the issue is to check the pressure relief valve and if it is working as it should the temperature will be lowered to lessen the pressure.
Either way call your dealer asap.
Here s what you should do.
Try lowering the temperature.
Possibly a loose connection on the water heater that is connected to the heat element or it could be the temp and pressure valve making that noise.
This is more common on older units and the noise increases as the deposit layer thickens.
As sediments accumulate at the bottom of the tank your water heating system exerts more effort and energy in warming water.
This noise may also be produced by a failing pressure relief valve or thermostat so they will have to be changed.
Step 1 check the pressure relief valve.
Thus the high pitched noise is produced.
If you ever hear a high pitched noise coming from your water heater it could be an indication that the tank needs to be flushed already.
It happened again this afternoon and quit immediately when i pulled the disconnect on my electric water heater.
Sediments collect around the element tubes of a water heater.
Water heater troubleshooting is as matter of finding the problem by eliminating possible problems.
Check this emergency relief valve.
When the element is off the caked sediments trap water beneath them and the water heats until it makes a cracking or popping sound as it is forced through the deposits.
If you are hearing a high pitched sound then check out these possible solutions.
It also only happened during the heating process when the electrical heating element was active.
Armed with this knowledge it was easy to deduce that the element was the cause.
High pitched whine from electric water heater the noise i thought was coming from my ac this morning even though it seemed loudest near my water heater was actually my water heater.