Immersion making noise

ThunbergsAreGo

We have had aot of noise coming from our hot water tank/immersion and in particular from this thing (not sure what it is)

It sounds very much like heavy vibration

Any ideas what this is or what is causing the noise?

https://drive.google.com/file/d/0B6MURdqS_gCBR0M1U0RnMWdqVjlMNHd2cldZaFVVODMyTkw4/view?usp=sharing

Bull76

That part is a 2 port valve, it has a motor in it to open the valve when requested. Thermostat usually switches the voltage to the valve and thus allows water to flow.
The motor could be driving and thus vibrates if it doesn't stop...More investigation required.

Calahonda52

Bull76 wrote: »

That part is a 2 port valve, it has a motor in it to open the valve when requested. Thermostat usually switches the voltage to the valve and thus allows water to flow.
The motor could be driving and thus vibrates if it doesn't stop...More investigation required.

+
the valve mechanism in the pipe may be stuck, if u are handy you can take it off, two bolts.
else use the lever on the side to keep it open and see does noise stop

google the part number and get the instructions, I can't read them on the picture