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Earls Court17 August 2026

iMac 21-inch (2015): SSD upgrade and full dust clean

A 2015 21-inch iMac from a customer in Earl's Court came in for an SSD upgrade and internal clean. We fitted a Crucial BX SSD, cleared heavy dust from the fan and vents, and returned it on the latest macOS within 24 hours.

Device
iMac 21-inch (2015)
Location
Earls Court
Where we worked
Collected and returned
Turnaround
24 hours
Parts fitted
Crucial BX-series SSD 500GB
Cooling fan removed from an iMac, held in hand, with a thick layer of dust caked along the intake edge
The fan intake was matted with dust.

The call

A customer in Earl's Court asked about upgrading the storage in their 21-inch iMac and having the machine serviced at the same time. We collected it and did the work at the bench.

Reported fault: Wanted an SSD upgrade and a clean-out

What we found

  • The iMac is a 2015 21-inch model, opened by releasing the display panel to reach the logic board and drive bay.
  • With the fan out, the intake edge was packed with a thick mat of dust and lint — visible in the first photo.

During the repair

iMac opened with the display panel lifted away, showing the logic board, power supply and a Crucial SSD fitted next to the fan
Inside the 21-inch iMac with the new SSD in place.
Close-up of the reinstalled iMac fan next to a Crucial BX SSD mounted in the drive bay
Reassembled iMac powered on and showing the macOS lock screen
Back together and booting on the latest macOS.

What we did

  1. 1Removed the display panel and lifted out the cooling fan.
  2. 2Cleaned the dust from the fan intake and the internal vents.
  3. 3Fitted a Crucial BX SSD in place of the original drive.
  4. 4Reassembled the machine and refitted the display panel.
  5. 5Installed the latest version of macOS and tested the machine before return.

The result

The iMac went back to the customer within 24 hours, running on the new SSD with the latest macOS installed and the cooling path clear. As with all our work, it carries a 90-day warranty and our no-fix-no-fee position applies.

Same fault on your Mac?

We come to your home or office in Earls Court for iMac repair.

Call 07378 349222View service page

More about what we do in this area: Mac repair in Earls Court.

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