Service Guy AI • Washer • Medium severity • Intermediate skill • ~30 min repair
Quick fix:Check and secure all wiring connections related to the temperature sensor.
What Does LG Error Code tE1 Mean?
LG washer: Error Code tE1
This is a medium-severity fault. The machine may complete the current cycle but is signalling a problem you should resolve before it escalates.
Possible Causes (4)
LG engineers identify the following root causes for fault code tE1. Work through them in the order shown — they are listed from most common to least common.
Faulty temperature sensor
Wiring issue between the temperature sensor and control board
Control board malfunction
Blocked drain pump affecting temperature readings
Step-by-Step Troubleshooting (5 steps)
Follow this sequence to diagnose and clear LG error code tE1. Power down and unplug the machine before any internal inspection.
Disconnect power before servicing.
Inspect the temperature sensor for damage or disconnection.
Check wiring connections between the temperature sensor and control board.
Test the control board for faults using a multimeter.
Examine the drain pump for blockages or malfunctions.
Required Parts
Have these LG OEM part numbers ready before starting the repair. AAdvantage Laundry Systems carries verified parts for every code in this database.
Temperature Sensor
Control Board
Wiring Harness
Thermistor
Diagnostic Test Mode
Enter LG diagnostic test mode: Hold 'Rinse+Spin + Power' for 3 seconds
Skill Level & Repair Time
This repair is appropriate for an experienced laundromat owner or in-house technician. You should be comfortable removing service panels, reading wiring diagrams, and using a multimeter to test continuity and voltage. Plan for approximately 30 minutes of active repair time once parts are on hand.
Get AI-Powered Diagnosis
If the steps above don't resolve LG tE1, run a free Service Guy AI diagnosis. Upload a photo of the error display and get an AI-generated repair plan tied to your exact LG model number, including supplier links for required parts and on-call technician escalation.