Vaillant ecotect pro 28 boiler droning noise - video

[Kovan]

recently the boiler has started the noise as in the videos. No idea where to start from. The boiler is used rarely, but for a while the top up valves where open which meant the pressure was always high when the boiler was on, this was fixed but the has started a while after the valve was turned off. The boiler has not been serviced for 2 years (new house owner and recently found out they need servicing) Any advise what this could be how much will it cost to be fixed? Thanks

link to videos of attached don’t work:Boiler noise - https://1drv.ms/f/s!AmmqVO9_YrbH7QP65zYResJaZDsB

 

[ShaunCorbs]

Sounds like pump issue / circulation time to call a gas safe engy out

 

[king of pipes]

As Shaun says sounds like a pump issue time for a Gasafe Engineer vist . Kop

 

[Kovan]

Cheers for the comments guys. Could result in the pump need replacing? Also will Vaillant cover parts replacement if the boiler is still under warranty? (Installed 2014). Thanks

 

[ShaunCorbs]

Has it been serviced yearly as warranty is void if not ?

 

[king of pipes]

I very much doubt it but if it's been serviced every year since it had been installed and you have the bench mark completed and service records then it's worth a call I suppose, but I would prepare yourself for a paid engineers visit. Regards kop

 

[Kovan]

Has it been serviced yearly as warranty is void if not ?

I only have 1 service log from the previous owner since 2014 ...
[automerge]1577896194[/automerge]
Thank you guys, I will get the plumber who last serviced it to look at it. Thanks again.

 

[Kovan]

Just an update on this. I got the boiler serviced and the engineer was surprised of how new it looks from inside. However, he didn’t detect any faults with the boiler, the only problem thought there is, was the prv (?) cause as he demounted the computer, the boiler releases water from the 15mm copper pipe that runs to outside and the fact the red cap of the valve was able to twist/loose. After he finished the boiler it still made the same noise left and he came back again another day, had a good look, called Vaillant but they were useless.

As he put the front panel on again and turned the boiler on, the noise came on, he played with panel a a bit and the noise changed or stopped in some cases. So he and I believe is the front panel causing the noises, is this possible?
Thanks