This guide will help you troubleshoot and resolve the GE Washing Machine Error Code E01, typically related to the inlet water temperature sensor.
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# How to Fix GE Error E01 (Inlet Thermistor Error)
## 1. Understanding the E01 Error Code
The GE Error Code **E01** (sometimes displayed as **E1**) officially indicates an **Inlet Thermistor Error** or a fault in the temperature sensing circuit.
### What it Means in Plain English:
The thermistor is a small sensor that measures the temperature of the water entering the machine. When the E01 code appears, it means the washer’s main control board (CCU) is receiving an abnormal reading (either too high, too low, or no reading at all) from the sensor. This safety feature prevents the machine from starting or continuing a cycle because it cannot accurately monitor water temperature.
**While the official diagnosis points to the inlet water sensor, the physical part that often fails and triggers this specific code in GE units is commonly known as the Dryer Thermistor, especially in washer/dryer combos.**
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## 2. Step-by-Step Fix: Diagnosing the Thermistor
The best way to diagnose this issue is to test the resistance of the thermistor using a multimeter.
### ⚠️ SAFETY WARNING: Unplug the machine completely before proceeding.
### Step 1: Access the Component
1. **Unplug and Turn Off Water:** Ensure the washing machine is completely disconnected from the power source and the water supply valves are shut off.
2. **Gain Access:** Depending on your GE model (especially if it is a stackable or combo unit), you will need to remove the top panel or the rear access panel to locate the thermistor.
3. **Locate the Thermistor:** The thermistor is typically located near the heating element or inside the blower/dryer exhaust duct assembly of the machine. It is usually a small, plastic component with two wires attached.
### Step 2: Test the Thermistor Resistance
You will need a multimeter capable of measuring Ohms (resistance).
1. **Disconnect Wires:** Gently pull the wires or connector leading to the thermistor to disconnect it from the wiring harness.
2. **Set Multimeter:** Set your multimeter to the resistance setting (Ω). Start with the 20K (20,000 Ohms) range.
3. **Test the Reading:** Place one probe on each terminal of the thermistor.
4. **Analyze the Reading:**
* **Good Thermistor:** At room temperature (around 70°F), a working GE thermistor should typically read between **10,000 and 50,000 Ohms** (10kΩ to 50kΩ). (Consult your specific model’s service manual for the exact specifications.)
* **Bad Thermistor (Open Circuit):** If the multimeter displays **OL (Over Limit/Open Loop)**, the circuit is completely broken, and the thermistor is faulty.
* **Bad Thermistor (Short Circuit):** If the multimeter displays **0 (zero) Ohms** or a very low resistance reading, the circuit is shorted, and the thermistor is faulty.
### Step 3: Check Wiring and Control Board (If Thermistor is Good)
If the thermistor provides a reading within the normal range, the issue might be related to the wiring harness or the control board:
1. **Inspect Wiring:** Check the wires leading from the thermistor back to the main control board for signs of melting, cuts, or corrosion. Repair any damaged wires.
2. **Control Board:** If the thermistor is good and the wiring is sound, the main control board (CCU) may be failing to interpret the temperature reading, requiring replacement of the board. (This is less common than a faulty thermistor.)
### Step 4: Replace and Test
1. If the thermistor tested bad, install the replacement part.
2. Connect the wiring harness securely.
3. Replace all panels and plug the machine back in.
4. Run a short diagnostic cycle to ensure the E01 error is cleared.
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## 3. Call to Action
Check the price for a replacement Dryer Thermistor here: https://www.amazon.com/s?k=GE+Dryer+Thermistor&tag=trivian-20
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