Dyson V15 Carpet Head Not Spinning Consistently

I’ve been using my Dyson V15 vacuum for about four months after its warranty expired. Over the past two to three weeks, the carpet brush head has started working intermittently — sometimes it spins normally, and other times it doesn’t rotate at all. The issue doesn’t appear under any specific condition; it happens randomly every time I use the vacuum. Apart from the carpet head, there are no other issues or performance problems with the device.

So far, I haven’t contacted any service centers or sought assistance. I purchased the product directly from Dyson’s official website, and I live in Kayseri, Turkey. My details are as follows:

Handle Order No: 2701432931

Customer Order No: 7001216573

Customer No: O70WEB01

Although the warranty expired only recently, I believe this malfunction is not acceptable for a product of Dyson’s quality. I am requesting a free repair or free replacement part to resolve this issue. I would appreciate Dyson’s assistance with this matter.