Quick answer
The 4C error code on your washer indicates a water supply issue. First, check the water supply valves to ensure they are fully open. Then, inspect the water inlet hoses for kinks or clogs. If the problem persists, follow the steps below to diagnose and fix the issue.
Confirm the symptom
- Washer displays the 4C error code.
- Washer does not fill with water.
- Washer stops mid-cycle.
- Error code appears after attempting to start a cycle.
- Water supply to the washer is not restricted.
Tools and prep
- Screwdriver (Phillips and flathead)
- Adjustable wrench
- Pliers
- Bucket
- Towel
- Power off the washer and unplug it from the power source.
- Turn off the water supply valves to the washer.
- Ensure the work area is well-lit and clear of obstacles.
Step-by-step troubleshooting
- Check Water Supply ValvesDo: Ensure the water supply valves are fully open.Observe: Water should flow freely when the valves are open.Means: The valves are not fully open.Next: Open the valves fully and try running the washer again.
- Inspect Water Inlet HosesDo: Check the water inlet hoses for kinks, twists, or clogs.Observe: Hoses should be straight and free of obstructions.Means: Hoses are kinked or clogged.Next: Straighten the hoses or replace them if necessary.
- Check Water PressureDo: Ensure the water pressure is adequate.Observe: Water should flow steadily from the hoses.Means: Water pressure is low.Next: Contact your water supplier or plumber.
- Clean Water Inlet ScreenDo: Remove the water inlet hoses and clean the screens.Observe: Screens should be free of debris.Means: Screens are clogged.Next: Clean the screens and reconnect the hoses.
- Inspect Water Level SwitchDo: Check the water level switch for proper operation.Observe: The switch should activate as water fills the washer.Means: The switch is faulty.Next: Replace the water level switch.
- Test Pressure SwitchDo: Use a multimeter to test the pressure switch.Observe: The switch should show continuity when activated.Means: The switch is defective.Next: Replace the pressure switch.
- Check Wiring ConnectionsDo: Inspect the wiring connections to the water inlet valve.Observe: Connections should be secure and free of damage.Means: Wiring is loose or damaged.Next: Repair or replace damaged wiring.
- Replace Water Inlet ValveDo: If all else fails, replace the water inlet valve.Observe: The new valve should function correctly.Means: The old valve was faulty.Next: Test the washer to ensure the issue is resolved.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Water supply valves not fully open Insufficient water flow triggers the 4C error. | Common | Easy | None |
| Kinked or clogged water inlet hoses Restricted water flow activates the error code. | Common | Easy | New hoses |
| Low water pressure Inadequate pressure prevents proper filling. | Sometimes | Easy | None |
| Clogged water inlet screen Debris blocks water flow, triggering the error. | Sometimes | Easy | None |
| Faulty water level switch Switch fails to detect water level correctly. | Rare | Medium | Water level switch |
| Defective pressure switch Switch does not signal proper water pressure. | Rare | Medium | Pressure switch |
| Loose or damaged wiring Poor connections cause intermittent water flow. | Rare | Hard | Wiring harness |
| Faulty water inlet valve Valve fails to open or close properly. | Rare | Hard | Water inlet valve |
Parts matching
If you need to replace any parts, ensure you get the correct ones for your washer model.
- Water inlet hoses
- Water inlet valve
- Water level switch
- Pressure switch
- Wiring harness
- Screws and fasteners for reassembly
Always check the model number of your washer to ensure compatibility with replacement parts.
When to call a professional
- If the error persists after trying all troubleshooting steps.
- If you are not comfortable working with electrical components.
- If the washer shows other error codes simultaneously.
- If you suspect a major internal component failure.
- If the washer leaks excessively when attempting repairs.
FAQ
What does the 4C error code mean?
The 4C error code indicates a water supply issue, meaning the washer is not receiving enough water to operate properly.
Can I fix the 4C error code myself?
Yes, many causes of the 4C error code can be fixed with basic troubleshooting steps. However, if you are not comfortable with the process, consider calling a professional.
How do I check the water pressure?
You can check the water pressure by turning on the faucet and observing the flow. If the flow is weak, you may have low water pressure.
What if the water inlet valve is faulty?
If the water inlet valve is faulty, it will need to be replaced. This is a more involved repair and may require professional assistance.