If you are hearing a high pitched sound then check out these possible solutions.
High pitched noise from rv water heater.
Step 1 check the pressure relief valve.
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.
As sediments accumulate at the bottom of the tank your water heating system exerts more effort and energy in warming water.
Try lowering the temperature.
It happened again this afternoon and quit immediately when i pulled the disconnect on my electric water heater.
Water heater troubleshooting is as matter of finding the problem by eliminating possible problems.
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.
Debris can get stuck in the hot water outlet creating a whistling noise.
This is more common on older units and the noise increases as the deposit layer thickens.
It also only happened during the heating process when the electrical heating element was active.
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.
This noise may also be produced by a failing pressure relief valve or thermostat so they will have to be changed.
If it is hot to the touch this may be the source of the sound.
Check this emergency relief valve.
The noise was only present when the water heater was using electric power not lp gas.
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.
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.
Here s what you should do.
We have a new potting on the circuit board and new circuitry underneath that causes a humming noise.
Thus the high pitched noise is produced.
Armed with this knowledge it was easy to deduce that the element was the cause.
This is not a defect with the water heater or components.
Another cause for a noisy water heater either on gas or electric can be a plugged check valve.
Parts and tools required for rv water heater service.
