Diagnostic Report

LG Fridge Not Cooling — Brakpan Repair

An LG fridge in Brakpan that's "not cooling" is a common callout across Ekurhuleni. An LG fridge that stops cooling is almost always one of four things: a failed defrost cycle icing the evaporator, a dead or stalling Inverter Linear Compressor, a stuck or failed evaporator fan, or a refrigerant loss in the sealed system. The compressor can still hum while no heat is removed — so "it sounds like it's running" does not rule out a cooling failure.

Appliance OverviewREV.01

Technical Overview — LG fridge

LG fridge units pair an Inverter Linear Compressor with multi-airflow cooling and a digital inverter control board. The combination is quiet and efficient, but it also means a single failing sensor, defrost heater or fan can cascade into a warm cabinet within hours.

  • Inverter Linear Compressor (variable-speed)
  • Multi-Air Flow cooling
  • Door-in-door & linear door lock options
  • Digital sensor array (cabinet, freezer, defrost)
  • Auto / smart defrost cycles
Fault AnalysisREV.01

Not Cooling — Common Causes & Checklist

An LG fridge that stops cooling is almost always one of four things: a failed defrost cycle icing the evaporator, a dead or stalling Inverter Linear Compressor, a stuck or failed evaporator fan, or a refrigerant loss in the sealed system. The compressor can still hum while no heat is removed — so "it sounds like it's running" does not rule out a cooling failure.

Common Causes

  • 01Defrost heater, defrost sensor or bimetal open — evaporator ices over and blocks airflow
  • 02Inverter Linear Compressor stall or inverter-board failure — compressor doesn't pump
  • 03Evaporator fan motor dead or jammed — cold air never reaches the cabinet
  • 04Refrigerant undercharge or sealed-system leak — low cooling capacity
  • 05Main PCB not driving the compressor drive or fan outputs

Diagnostic Checklist

  • Confirm the cabinet warms while the compressor still energises
  • Inspect the evaporator coil for a solid ice block (defrost failure)
  • Measure defrost heater continuity and defrost sensor resistance
  • Test the inverter board output to the compressor
  • Check evaporator fan voltage at the PCB and motor resistance
  • Recover and weigh refrigerant charge if the sealed system is suspect
Service ZoneREV.01

Serving Brakpan & the Ekurhuleni area

Brakpan, Ekurhuleni Est. arrival 30–45 min

Brakpan's Dalview, Brenthurst and the Carnival City precinct are within our regular service loop.

How Our Repair Process Works

STEP 01

Book a diagnostic

Call or WhatsApp 069 268 0988 to lock in a same-day slot in Brakpan.

STEP 02

On-site diagnosis

We test the failing subsystem — sensors, defrost circuit, compressor drive, fans and PCB — before quoting.

STEP 03

Transparent quote

You get a clear quote for parts and labour. No work starts until you approve it.

STEP 04

Repair & test

We fit genuine-quality parts, run the unit under load, and confirm the fault is gone before we leave.

Frequently Asked Questions

Can my LG fridge be repaired if it's not cooling?

Yes — in most cases the fix is a defrost heater, fan motor, sensor or inverter board rather than a full compressor. We diagnose before quoting so you don't pay for parts you don't need.

Is it worth repairing or should I replace it?

If the sealed system (compressor/leak) is sound, repairing is almost always cheaper. We'll tell you honestly if a compressor or leak makes replacement the better call.

Related Repairs & Locations

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Request a LG Fridge Not Cooling — Brakpan callout

Fill in the form and we'll call you back to confirm a slot in Brakpan.

Your request is sent to info@reyds.co.za. We'll call you back to confirm a slot.

Reyds LG Service is an independent appliance repair service. We are not affiliated with, endorsed by, or authorised by LG Electronics. All trademarks belong to their respective owners.