If your LG dryer Model # DLE7300VE suddenly stops drying correctly or throws the tE1 error code, you’re not alone. This is one of the more common LG dryer error codes we run into across Atlanta and the surrounding areas.
According to LG’s official error code list, a tE1 error code indicates the dryer detected a problem with the thermistor (temperature sensor). LG also notes that the first step is often a reset, and if the code returns, the unit may require service.
In this blog, we’ll break down what tE1error means, the most common fix, and the real-world surprises we’ve seen on this exact model.
What Does LG Dryer Error Code tE1 Mean?
The thermistor is essentially the dryer’s temperature “thermometer.” It monitors air temperature and reports back to the control system so the dryer can regulate heat safely and dry consistently.
When the dryer detects abnormal thermistor readings (or an issue in that circuit), it can trigger tE1 error.
The Most Common Fix: Thermistor / Sensor Kit (AGM30045804) 
For LG DLE7300VE, the common replacement is the AGM30045804 kit, which includes the temperature-sensing components (thermistors / sensors in a kit format, depending on supplier packaging).
Part # AGM30045804 is widely sold as a thermistor/thermostat kit and is commonly used when dryers overheat, don’t heat correctly, or throw temperature-related codes.
What we check first
In the field, we typically start by:
- Inspecting the thermistor/sensor connections for corrosion, loose pins, or overheating marks
- Checking wiring condition and connector seating
- Verifying proper airflow (a restricted vent can cause heat-related issues and weird temperature behavior)
DIY guides also commonly point to thermistor testing + checking wiring/connector damage as part of tE1 troubleshooting.
The Real-World Twist: Sometimes It’s the Main Control Board (EBR31002611)
Here’s the important part you mentioned — and it matches what we’ve seen too:
Even though LG’s tech sheets and general guidance point to the thermistor circuit, we’ve repaired many tE1 error cases where the thermistor kit wasn’t the real culprit.
On DLE7300VE, we’ve had a number of calls where:
✅ Thermistor kit was fine (or replaced)
❌ Error returned
➡️ The actual fix was the main control board
For this model, the main control board is commonly listed as:
Main Control Board: EBR31002611
This happens because the control board is the “brain” interpreting the sensor readings. If the board’s input circuit is failing, it may falsely read temperatures out of range and throw tE1 error—even if the sensors are good.
Rare But Possible: Wire Harness / Connection Issue
You were spot-on: a wiring issue is rare, but it can happen.
We’ve seen occasional cases where:
- A connector pin backs out slightly
- A harness rubs or gets heat-damaged over time
- The thermistor reads fine at rest but fails intermittently under vibration/heat
That’s why continuity checks and a close inspection of plugs and terminals matters, especially if the problem is intermittent.
Cost Expectations for Dryer repair
Pricing varies a lot by supplier, but generally:
- Thermistor kit (AGM30045804): often lands in a mid-range part cost bracket (varies widely by seller)
- Main board (EBR31002611): can vary dramatically depending on source and availability
(We typically quote after verifying which component is actually failing—because swapping boards blindly gets expensive fast.)
Our Recommendation (Fastest Path to a Correct Fix)
For LG DLE7300VE with tE1:
- Start with proper diagnostics (thermistor circuit + connections + airflow)
- If sensor readings and harness check out but tE1 persists, suspect the main control board (EBR31002611)
- Wire harness is last on the list—but don’t ignore obvious heat damage or loose terminals
🔧 Need Help With an LG Dryer tE1 Error?
If your LG dryer DLE7300VE is showing the tE1 error code, don’t guess on expensive parts. Let a professional technician diagnose whether the issue is the thermistor kit (AGM30045804), the main control board (EBR31002611), or a wiring-related problem.
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