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Error code reference

LG Washer Error Code 0t

PCB temperature sensor short circuit error related to cooling fan motor.

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What the 0t error code actually means

Your LG washer has detected an electrical problem with a small heat-monitoring sensor located on the control board. This sensor is connected to the cooling fan system that keeps the electronics from overheating, and it has short-circuited, causing the machine to stop as a safety precaution. A technician will need to inspect the wiring and sensor to find and repair the fault before the washer can run normally again.

Diagnostic procedure

The full 0t procedure

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1
First diagnostic step
Check for short circuit in PCB temperature sensor; repair the short circuit.
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Most common causes of 0t

Ranked by how often they cause this code
  1. 1Shorted PCB temperature sensor
  2. 2Damaged sensor wiring harness
  3. 3Cooling fan motor wiring fault
  4. 4Failed or damaged main PCB
  5. 5Connector corrosion or contamination

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Questions people ask about 0t

What does 0t mean on a LG washer?
The 0t code on an LG washer indicates a short circuit error in the PCB temperature sensor, which is tied to the cooling fan motor circuit. This sensor monitors heat levels on the control board, and when a short is detected, the washer shuts down to prevent further electrical or component damage. The fault must be diagnosed and repaired before normal operation can resume.
Is it safe to use my LG washer while the 0t error is showing?
No, you should not attempt to run the washer while the 0t error is active. The code indicates a short circuit condition in the control board sensor circuit, which is an electrical fault that could cause additional damage to the PCB or other components if ignored. Stop using the machine and have it inspected before running another cycle.
How much does it cost to repair the 0t error on an LG washer?
Repair costs vary depending on the root cause. If only the wiring harness needs repair or a connector needs cleaning, costs may range from roughly $50 to $150 for a service call and labor. If the PCB temperature sensor or the main control board requires replacement, total repair costs including parts and labor can range from $150 to $400 or more depending on the specific model and parts pricing.
Can I fix the 0t error on my LG washer myself?
Some aspects of diagnosis are manageable for experienced DIYers, such as visually inspecting wiring harnesses and connectors for obvious damage or corrosion. However, accurately locating a short circuit requires a multimeter and comfort working around control board components. If the fault is within the PCB itself, replacing the control board is generally a job best handled by a qualified technician.
Will resetting my LG washer clear the 0t error code?
A power reset by unplugging the washer for a few minutes may temporarily clear the display, but the 0t error will return if the underlying short circuit has not been repaired. The fault is hardware-based, meaning the sensor or wiring issue must be physically corrected to permanently resolve the code.

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