Skip to content
CodesErreur.comSWISS PRO ENGINE
Core Diagnostics
DiagnosticsBrandsOEM ManualsSpecialistsAI EngineerPRO
Workshop Tools
Diagnostic ToolsNEW
Hardware interfaces & test probes
Find Rating Plate
Locate exact E-Nr, PNC & serial codes
Parts Locator
Global OEM spare parts suppliers
Community & Career
Academy & Courses
Masterclasses by senior technicians
Certification ExamsPRO
Verify your B2B technical credentials
Elite Forum
Peer-to-peer field troubleshooting
Tech Jobs
B2B recruitment & field opportunities
Leaderboard
Global ranking of verified specialists
Certified Appliance Engineering EcosystemApply for Certification →
Language Selector
Account & Access
Upgrade PRO
Back to Search
OEM VERIFIED BENCH
OFFICIAL FAULT CODECondenser Fan Error
LG
LG // OFFICIAL DIAGNOSTIC BENCH

LG Condenser Fan Error

RefrigeratorDrive Motor, Inverter & Tachometer Sensor
Monolithic French-door smart refrigerator in matte black steel with dual refrigeration zones
Refrigerator

Symptom / Description

FAULT

On LG Refrigerator: Condenser Fan Error is displayed and the condenser fan does not rotate.

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

On LG Refrigerator: Loose connection (CON7), defective fan motor (connector, locked, mouse), defective main PCB.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED
1On LG Refrigerator: Reconnect CON7. Reset and Enter TEST 1 MODE (check output voltage between pin7 and pin8 of CON7, 12 ~ 16 V). Check feedback voltage (pin8 and pin9 of CON7, 1 ~ 4 V). If abnormal, check fan motor, replace Main PCB.
AI diagnostic workshop engine analyzing appliance circuit schematics and error telemetry in real time
AI WORKSHOP PROTOCOL ENGINE
Direct extraction from OEM factory manuals & wiring schematics

Field Actions

DISPATCH
Need Help? Call a Certified TechnicianWorldwide LG Parts Finder
Electrical & Safety Protocol

Always disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.

CALIBRATED BENCH PROTOCOL // CAT III 600V

Workshop Verification & Safety Checklist

WORKSHOP VERIFICATION PROTOCOLDrive Motor, Inverter & Tachometer SensorRefrigerator / Freezer
2. Multimeter & Electrical Bench Tests (Ω)
MODE: OHMMETER (Ω)AUTO-RANGE
Precision digital multimeter probes measuring electrical resistance in Ohms on an appliance control board
CALIBRATED METROLOGY RESISTANCE BENCH (CAT III)
Nominal Resistance (Ω)
3Ω–6Ω (BLDC phase U-V-W) / 60Ω–180Ω (Tacho coil) / 1.5Ω–3.5Ω (Universal stator)NOMINAL
0 Ω (SHORT)CALIBRATED BAND∞ OL (OPEN)
▲ NOMINAL OPERATING WINDOW
Target Component:3-Phase Motor Windings / Tacho Generator / Carbon Brushes
Test Pins & Connections
PROBE (+)
PROBE (-)
Across phase pins U-V, V-W, U-W on motor harness; across tacho pins
Tolerance & Diagnostic CriteriaBLDC phase winding values must be strictly balanced within ±0.3Ω. Hand rotation generates 1V–4V AC on tacho.
1. Pre-Intervention Electrical Safety Protocols
  • !High-Voltage Safety Protocol & DC Bus: Wait at least 5 minutes after power cutoff to allow inverter DC bus capacitors (380V DC) to bleed down.
  • !Verify 0V DC across inverter filter capacitors before unplugging motor harness connectors.
  • !Keep hands clear of drive belt and pulleys during any manual rotation tng.
3. Preliminary Mechanical & Visual Checks
  • Slip off drive belt and spin drum/motor shaft by hand to check for roaring or seized ball bearings.
  • For universal motors: verify carbon brushes have at least 10mm remaining length and smooth contact faces.
  • Inspect motor suspension rubber mounts and drive belt tension/groove profile.
Perform these diagnostic steps before triggering AI Deep Search or replacing boards.Certified Workshop Routine

Frequently Asked Questions: LG CONDENSER FAN ERROR

FAQ TREE
What does error code CONDENSER FAN ERROR mean on a LG appliance?

LG error code CONDENSER FAN ERROR indicates: On LG Refrigerator: Condenser Fan Error is displayed and the condenser fan does not rotate..

What is the root cause of LG error code CONDENSER FAN ERROR?

The primary root cause for LG code CONDENSER FAN ERROR is: On LG Refrigerator: Loose connection (CON7), defective fan motor (connector, locked, mouse), defective main PCB..

How do I fix or resolve LG error code CONDENSER FAN ERROR?

To resolve error code CONDENSER FAN ERROR: On LG Refrigerator: Reconnect CON7. Reset and Enter TEST 1 MODE (check output voltage between pin7 and pin8 of CON7, 12 ~ 16 V). Check feedback voltage (pin8 and pin9 of CON7, 1 ~ 4 V). If abnormal, check fan motor, replace Main PCB.

Is it safe to clear LG error code CONDENSER FAN ERROR by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if LG code CONDENSER FAN ERROR persists, the physical component causing On LG Refrigerator: Loose connection (CON7), defective fan motor (connector, locked, mouse), defective main PCB. must be inspected or replaced.

How do I test electrical resistance for LG code CONDENSER FAN ERROR using a multimeter?

Set a digital multimeter to ohms (Ω). Disconnect power and test 3-Phase Motor Windings / Tacho Generator / Carbon Brushes across Across phase pins U-V, V-W, U-W on motor harness; across tacho pins. Expected nominal reading is 3Ω–6Ω (BLDC phase U-V-W) / 60Ω–180Ω (Tacho coil) / 1.5Ω–3.5Ω (Universal stator). Tolerance: BLDC phase winding values must be strictly balanced within ±0.3Ω. Hand rotation generates 1V–4V AC on tacho..

What safety protocol must be followed before servicing LG code CONDENSER FAN ERROR?

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.

Community Verification

COMMUNITY

Did this solution resolve the issue?

SEMANTIC KNOWLEDGE GRAPH // LG

Related LG Refrigerator / Freezer Error Codes

Diagnostic Link Mesh14 OEM Cross-References

Cross-referenced diagnostic codes for technicians inspecting similar component subsystems.

dHRefrigeration Compressor, Defrost Heater & PTC Relay
On LG Refrigerator: Defrosting Error / Defrost heater problem (Temperature not raised over 5...
Inspect Protocol
dSRefrigeration Compressor, Defrost Heater & PTC Relay
On LG Refrigerator: Defrost Sensor problem / Defrost temperature detection problem
Inspect Protocol
ErGeneral System & Mechanical Integration
Failure of outside sensor. Diagnostic error code Er reported on LG Refrigerator.
Inspect Protocol
Er CFDrive Motor, Inverter & Tachometer Sensor
On LG Refrigerator: Condenser fan Failure / ABNORMAL CONDENSOR FAN MOTOR / Refrigerator Fan ...
Inspect Protocol
Er COElectronic Control Board (PCB) & Bus Communications
LG ER CO: Operational cycle fault detected during Refrigerator / Freezer program execution.
Inspect Protocol
Er dHRefrigeration Compressor, Defrost Heater & PTC Relay
LG ER DH: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment t...
Inspect Protocol
Er dSRefrigeration Compressor, Defrost Heater & PTC Relay
On LG Refrigerator: Defrost Sensor failure (defrost temperature detection problem) / ABNORMA...
Inspect Protocol
Er FFDrive Motor, Inverter & Tachometer Sensor
LG ER FF: Motor drive or inverter rotation anomaly in Refrigerator / Freezer; drum/motor fai...
Inspect Protocol
Er FSGeneral System & Mechanical Integration
LG ER FS: Operational cycle fault detected during Refrigerator / Freezer program execution.
Inspect Protocol
Er IFRefrigeration Compressor, Defrost Heater & PTC Relay
On LG Refrigerator: Icing fan motor failure (a very common call during summer).
Inspect Protocol
Er ISElectronic Control Board (PCB) & Bus Communications
On LG Refrigerator: Icemaker Sensor problem / Icemaker problem (cubes no longer dispensed) /...
Inspect Protocol
Er ItDrive Motor, Inverter & Tachometer Sensor
On LG Refrigerator: Icemaker unit Failure (icemaker unit motor problem) / ABNORMAL ICE-MAKER...
Inspect Protocol
Er r2Electronic Control Board (PCB) & Bus Communications
On LG Refrigerator: Refrigerator Sensor 2 problem / Refrigerator side temperature detection ...
Inspect Protocol
Er rFDrive Motor, Inverter & Tachometer Sensor
Refrigerator fan failure.. Diagnostic error code Er rF reported on LG Refrigerator.
Inspect Protocol
CodesErreur.com

Premium appliance diagnostics & repair database.
Powered by AI to help certified technicians worldwide.

Trusted by professionals in CH & FR

Platform

Search DatabasePRO Diagnostic AIPRODiagnostic ToolsBrands

Workshop Tools

Brands (87)OEM ManualsFind Rating PlateParts Locator

For Technicians

SpecialistsTechnician ForumTech JobsPremium

Corporate

Terms of ServicePrivacy PolicyOfficial Swiss Repair Partner: Electroassistance
OPERATIONAL SAFETY SPECIFICATION

SAFETY DISCLAIMER

The technical information, diagnostic guides, error codes, and AI-generated suggestions provided on this website are intended exclusively for certified and qualified professionals. Appliance repair involves severe electrical hazards, high voltages, and mechanical risks that can result in fatal injury or severe property damage. If you are not a trained technician, do not attempt to repair any appliances. CodesErreur assumes no responsibility or liability for any damage, injury, or consequential losses resulting from the use of the information provided on this platform. You use all information entirely at your own risk.

© 2026 CodesErreur. All rights reserved.

Official Swiss Repair Partner: Electroassistance Terms of Service Privacy Policy