# How to Fix Samsung Error 4E (Water Supply Error)
The Samsung Error Code **4E** (sometimes displayed as **4C** or **4E1** on newer models) indicates a problem with the **Water Supply**.
In plain English, this means the washing machine attempted to fill the drum with water but failed to meet the necessary water level or flow rate within a set time limit (usually 2-3 minutes).
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## Step-by-Step Fix: How to Diagnose Error 4E
Before assuming a mechanical failure, follow these steps in order, starting with the simplest external checks.
### Phase 1: External Diagnosis (90% of Fixes)
#### Step 1: Check the Water Faucets and Hoses
The most common cause of the 4E error is a simple lack of water reaching the machine.
1. **Check the Supply Taps:** Ensure that the hot and cold water supply taps behind the washer are fully open. They should be turned counter-clockwise until they stop.
2. **Inspect Hoses:** Check both the hot and cold inlet hoses for kinks, bends, or crimps. Straighten any hoses that are restricting water flow. If the laundry area is cold, ensure the hoses haven’t frozen.
3. **Pressure Test:** Turn off the washer and disconnect the hoses from the back of the machine (keep a bucket handy!). Place the ends of the hoses in the bucket and briefly turn on the water taps to confirm that water is flowing out with strong pressure.
#### Step 2: Clean the Inlet Filters
The washer’s inlet valves are protected by small mesh filters designed to catch sediment and debris from your home’s water lines. If these filters clog, they drastically reduce the flow rate and trigger the 4E error.
1. **Turn Off Water:** Turn off both the hot and cold water taps completely.
2. **Disconnect Hoses:** Disconnect the hoses from the back of the washing machine.
3. **Remove Filters:** Using needle-nose pliers, carefully pull the small mesh filters out of the washer’s inlet ports.
4. **Clean:** Rinse the filters thoroughly under running water, scrubbing them gently with a small brush (like an old toothbrush) until all debris is removed.
5. **Reinstall:** Reinsert the filters back into the inlet ports, reconnect the hoses tightly, and turn the water taps back on.
#### Step 3: Verify Hose Connections (Temperature Check)
If your machine is requesting cold water but receives extremely hot water, it can sometimes trigger the 4E error (specifically 4E1 or 4E2).
1. Confirm that the **Hot** water hose is connected to the inlet labeled **H** (or Red).
2. Confirm that the **Cold** water hose is connected to the inlet labeled **C** (or Blue).
### Phase 2: Internal Diagnosis (Replacing the Valve)
If you have confirmed that:
* The water supply is on and strong.
* The hoses are kink-free.
* The inlet filters are clean.
* The hot/cold connections are correct.
…then the issue is likely a **faulty Water Inlet Valve.**
The Water Inlet Valve is an electronic solenoid component that controls the flow of water into the washer drum. If the solenoids fail, they will not open (or only partially open), and the machine will fail to fill within the time limit, triggering the 4E error.
**Replacing the Water Inlet Valve** requires disconnecting power and water, accessing the rear of the machine, and removing the top panel, but it is a relatively straightforward DIY repair.
**Check the price for a replacement Water Inlet Valve here: https://www.amazon.com/s?k=Samsung+Water Inlet Valve&tag=trivian-20**