Boiler is heavily leaking through an "over-flow" pipe?

Halabala9

Hi Guys,

I know nothing about boilers so I was wondering if you could give me a hand. I moved in to a new flat a month ago (All eletric with boiler) and hadn`t got any experience with boilers before so not sure if what happens to my boiler is normal or not but I assume it`s not.

On Friday I noticed that my boiler is heavily leaking through what I assume is an over-flow pipe. It leaks for about 30min then slowly stops. It happened again on Saturday, then at night around 1AM on Sunday and now again in the morning. I didn`t notice it before so I assume it started of Friday (you can clearly hear it so I believe I would notice it if it happened earlier).

The water leaking through the pipe is hot and the water meter is spinning, I recorded a video so you can see exactly what I mean. I am a tenant so I want to inform my estate agency on Monday but before I talk to them I would prefer to know what is that.

I am a new user so I can`t post links, just add this to your youtube link - /watch?v=IhKWctA1Jf0

Thank you in advance.

Mike

Halabala9

BTW.

It`s Dimplex SCx175D - 175l capacity.

Now knowing the capacity and looking at the meter since Friday, it seems like this boiler drops the whole water when is fully heated, then fills up with cold, heats up again and drops again. It would match up with the meter since Friday, because I think it happened like 4-5 times and it used like over 1m3 of water when I barely used the water myself at all (2x shower, some toilet flushing and few dishes washing).

Norman_Castle

Make sure the valves on the filling loop are fully closed. What's the boiler pressure?

Owain_Moneysaver

That's not a "boiler", that's an unvented electric hot water cylinder. Overheating overnight as on Eco 7 electricity?

Probably the pressure vessel has failed and water is being discharged through the pressure relief valve.

Turn off the switch(es) to the immersion heater(s) adjacent to it, and tell the agents you need a plumber with an Unvented Hot Water Qualification.

G_M

Just to add, by allmeans call the agent for a speedy response, but always also put issues in writing.


You've been given an address 'for serving notices on the landlord' probably in your tenancy agreement (if you have not you don't have to pay rent!) so write to the landlord at that address (and copy the agent).

System

Have a look at the troubleshooting pages in this guide:

https://www.dimplex.co.uk/sites/default/files/assets//SCXN_Unvented_Hot_Water_Cylinder_Instructions_Issue_002.pdf

Get the Landlord to sort it out for you.