Signs your iMac needs a repair
- Very slow start-up or a constant spinning wheel
- Cracked glass, a black screen or lines on the display
- Clicking drive, or a folder with a question mark at start-up
- Won't turn on, or restarts on its own
- Loud fans, overheating or sudden shutdowns
- Distorted picture or coloured blocks on screen
Why is my iMac so slow?
Slow, software and virus problems are the most common reason customers bring us an iMac. Many older iMacs were sold with a mechanical hard drive or Apple's Fusion Drive. A hard drive is much slower than an SSD, and a worn one makes start-up and opening apps drag.
An SSD has no moving parts and reads data many times faster, so fitting one is usually the biggest speed improvement an older iMac can get. Where the cause is software, we repair iMacs that are slow, freezing, showing errors or failing to start up.
Can a cracked iMac screen be replaced?
Yes. We replace cracked, black and unresponsive iMac screens. On iMacs made from 2012 onwards, the front glass and the display panel are bonded into one part, so cracked glass means replacing the whole display.
A screen that stays black while the iMac is clearly still running, or one showing lines and coloured blocks, is not always a screen fault. It can be the graphics card, which we also repair.
What if my iMac won't turn on?
First check the power cable is pushed fully into the back of the iMac, and try a different wall socket. Then unplug the cable, wait 15 seconds, plug it back in, wait 5 seconds and press the power button.
If nothing happens, or the iMac clicks off or restarts on its own, the fault is likely to be the power supply or the logic board. We repair both.
Can my iMac be upgraded?
It depends on the model. On older iMacs we replace failed hard drives, fit SSD upgrades and add memory. Some iMacs have memory slots that are easy to reach, while others need the screen removed first.
The 24-inch M1, M3 and M4 iMacs are different: their memory and storage are built in and can't be upgraded after purchase.
Before you bring your iMac in
- Back it up with Time Machine if it still starts
- If the drive is clicking, switch it off and leave it off
- Cover the screen with a blanket or towel for the journey
- Note what happens, when it started and what you've tried