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Repair Service

Power Supply Repair

iMacs house their power supply internally — when it fails, the whole machine can appear dead even though the logic board itself is fine.

Repair illustration
Common Symptoms

Signs you need a power supply repair

  • iMac won't turn on at all, no chime, no fans, no light
  • Mac powers on briefly then immediately shuts off
  • Burning smell or visible scorch marks near the rear vents
  • Fans spin but there's no display output
  • Intermittent power — works sometimes, fails other times
Our Process

How we repair it

  1. Power diagnosis

    We test the PSU in isolation to confirm whether it, or the logic board, is the cause.

  2. PSU replacement

    A tested, compatible power supply unit is fitted and securely seated within the chassis.

  3. Load testing

    The iMac is run under sustained load to confirm stable power delivery before return.

Essex & Beyond

Available in person or by post

This repair is available in person for customers across Essex, and by our free, fully insured postal repair service for anywhere else in the UK, or worldwide.

Quote for Power Supply Repair

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Select Your Model

Power Supply Repair — pricing by model

Parts and labour for power supply repair vary by model. Choose your exact Mac below for specific information and a tailored quote.

iMac 24" (M4, 2024)A3247, A3137iMac 24" (M3, 2023)A2873, A2874iMac 24" (M1, 2021)A2438, A2439iMac 27" Retina 5K (2020)A2115iMac 21.5" Retina 4K (2019/2020)A2116iMac 27" Retina 5K (2019)A2115iMac 27" Retina 5K (2017)A1419iMac 21.5" Retina 4K (2017)A1418iMac 27" Retina 5K (2014/2015)A1419iMac 21.5" (2015)A1418iMac 27" (2013/2014)A1419iMac 21.5" (2013/2014)A1418iMac 27" (2012)A1419iMac 21.5" (2012)A1418iMac 27" (2011)A1312iMac 21.5" (2011)A1311
Other Repairs

Other common repairs

Screen Repair

Cracked, smashed, or displaying lines, blackout, or backlight bleed.

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Trackpad Repair

Unresponsive, clicking failure, erratic cursor, or physically damaged trackpad.

View repair details

Keyboard Repair

Sticking keys, missing keycaps, liquid damage, or full keyboard replacement.

View repair details

Battery Replacement

Swollen battery, poor health, won't hold charge, or sudden shutdowns.

View repair details

Speaker Repair

Crackling, distorted, or silent speakers and audio output issues.

View repair details

Logic Board Repair

No power, liquid damage, won't boot, or board-level component failure.

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