# How to Fix Frigidaire Error E42 (Door Lock)
The Frigidaire washing machine error code **E42** specifically signals a problem with the **Door Lock mechanism**. This is a critical safety feature; if the washer cannot confirm the door is securely locked, it will not begin the wash cycle, or it will stop mid-cycle to prevent flooding or injury.
This guide will help you diagnose whether the issue is a simple obstruction or a failed electrical component (the Door Lock Assembly).
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## Explanation: What E42 Means
The E42 error indicates that the **Control Board (main board)** is unable to receive a signal from the **Door Lock Assembly** confirming that the door has successfully latched and locked.
**Common Causes:**
1. Physical obstruction (clothing caught in the latch).
2. Temporary electronic glitch (needs a hard reset).
3. Failed Door Lock Switch or Solenoid (requiring part replacement).
4. Failed main Control Board (least common, usually triggered by a short in the lock).
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## Step-by-Step Fix: How to Diagnose E42
Follow these steps, moving from the easiest and most likely fixes to the component replacement.
### Step 1: Perform a Hard Reset
Electronic errors can often be cleared by cycling the power to the machine.
1. **Unplug** the washing machine from the wall outlet.
2. Wait a full **5 minutes** to ensure the control board’s memory is completely cleared.
3. **Plug** the washing machine back in.
4. Try to start a new cycle. If the error persists, move to Step 2.
### Step 2: Check for Obstructions and Proper Closing
If the door cannot fully close and latch, the machine cannot lock it electronically.
1. **Open the washer door** and carefully inspect the entire circumference of the door opening.
2. Look for any **articles of clothing, socks, coins, or foreign debris** stuck near the latch area.
3. Ensure the **striker** (the metal or plastic hook on the door itself) is not bent or broken.
4. **Firmly close the door.** You should hear a distinct *click* confirming the mechanical latch is engaged.
5. Try to run a quick test cycle. If the error remains, the problem is internal to the lock assembly.
### Step 3: Inspect the Door Lock Assembly Wires
A loose connection or damaged wire can prevent the lock assembly from communicating with the control board.
***(Note: Only proceed if you are comfortable disconnecting power and accessing internal components.)***
1. **Unplug the machine** completely before proceeding.
2. Depending on your model, you will likely need to remove the top panel or the front access panel.
3. Locate the Door Lock Assembly (it is attached to the washing machine frame just behind where the door latches).
4. Inspect the **wire harness** plugged into the assembly. Ensure the connection is tight and secure. Look for any signs of burned, frayed, or disconnected wires.
5. If you find loose wires, reattach them securely.
### Step 4: Confirm Failure of the Door Lock Assembly
If the reset works, the door is closed properly, and the wires are secure, the internal locking mechanism has failed. The Door Lock Assembly contains a solenoid or switch that physically moves the locking pin and sends the confirmation signal to the control board. This component is rarely repairable and must be replaced as a single unit.
**Signs of a Failed Assembly:**
* The door physically latches, but the washer never *clicks* to lock the door before starting the cycle.
* The error code appears immediately upon trying to start a cycle.
* You hear a low humming or clicking sound as the machine tries (and fails) to engage the lock.
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**Replacement Component Action:**
If you have confirmed that the Door Lock Assembly is the faulty component, it must be replaced.
Check the price for a replacement Door Lock Assembly here: https://www.amazon.com/s?k=Frigidaire+Door Lock Assembly&tag=trivian-20