bladerunner94

Update: after 3 weeks, vent axia sent the replacement motors. They look like this, from manufacturer Torin-Sifan. I didn't manage to remove the old fans yet, as the unit is built into a very difficult position in my flat, and I will need another person so we can remove the unit, and the old motors with the dodgy bearings.

I am currently waiting for Vent Axia to send me under warranty a new replacement motor for my bearing failed vent axia Kinetic Sentinel B plus unit. In the meantime I am exploring options to but replacement bearings for my unit so I can keep the new motor as a backup, when/if my current motor fails. I asked vent axia, and they couldn't provide me answer regarding the bearing size and quantity for my unit. Therefore my questions are: How many bearings in total I can/need to buy for my Vent Axia Kinetic Sentinel B plus model if I would like to replace every possible bearing which could fail? What are the diameters, sizes, finish etc. for the bearings? I know SKF is a recommended brand as well for these bearings. Thank you for the help!

Another question: how many bearings are recommended to purchase and in which size? I see on this forum despite being Sentinel Kinetic Plus B model, there might be different size bearings (6mm or 7mm or 8mm etc.)?

Thank you, that's actually a nice suggestion, I like it a lot! I read on this forum about SKF as a trusted replacement brand for our units, so I might give it a go.

Update: Vent Axia confirmed it's a bearing issue, after I shared the details and the video with them. As my unit is 10 weeks away to be 5 years old, they are apparently sending out to me a complete, brand new motor (497818 Motor Assembly & Patch Cable Kit)! Unfortunately they cannot organise a technician under warranty anymore, as the unit is more than 2 years old, however this new part free of charge is already reassuring. I will update this post after I received and installed the new part to share my experience. However so far, Vent Axia handling the situation prompt and very professional.

@Blooda, unfortunately very minimal for the price. I had mixed experience. The engineer said "due to difficult installation location of my MVHR unit", he couldn't remove the side board to do any sort of internal inspection and cleaning. The main reason I wanted a service to have an experienced independent company setting up the correct airflow for my unit, as the people who commissioned the units in our development had no idea how to properly set the airflow, and the systems were running inefficiently, with high humidity level and unbearable heat almost all the time. This has been rectified by HRV group, however I certainly won't call them again and just do the maintenance myself (or maybe a different company in the future). Funny thing, vent axia directly recommended HRV group to me as their authorised service partner. I agree my unit is installed weird as half of the unit is behind a wall, and I have difficulties replacing one of my filter due to lack of space, but nothing a small length screwdriver cannot fix to be honest as I was able to remove all the screws from the panel myself later.

Hi Everyone, In my new build flat, which is 4 years old I have a Vent Axia Kinetic Sentinel Plus B model installed. In the first 2 years the machine was operating correctly, I usually replaced filters every 6 month, and I had a major service carried out by HRV Group in 2023 September, where they told me the machine is working correctly. During that service I mentioned to them that I hear an unusual sound from the machine, and it got louder. When the technician visited, he told me it's normal. A year almost passed and yesterday on the 6th of June I noticed the machine got loud like an airplane. I have created a video which you can find here: I contacted Vent Axia to ask about warranty, and if they are able to investigate and rectify the issue without any extra costs for me, but no answer yet. My questions are: Is this noise normal with a 4 year old unit? What is the warranty on these machines? What could be causing this excessive noise? Thanks for all the help!