Samsung Washing Machine ✅ Safe for Now

Samsung Washing Machine Error Code 4C

Samsung Washing Machine error code 4C: Water supply problem — not filling.

Last reviewed: Aug 7, 2026 Last updated: Aug 7, 2026

Methodology: Reviewed against Samsung washer support guidance, then grouped by fault family before separating owner-safe checks from technician-level diagnosis.

Sources: Manufacturer fault-code sheets, service manuals, and recurring field-repair patterns.

Samsung Support - Washer error codes and troubleshooting — Official Samsung support guidance for washer error codes, water supply, drain, door, balance, and sensor troubleshooting.

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

Should I unplug it?

✅ No — safe for now

Safe — unit stops when it can't fill. Check the supply hose and valve before calling a technician.

Can I fix it myself?

DIY Possible

Part: Water inlet valve / supply hose

How much will it cost?

DIY: $15–$80 (inlet valve)

Technician: $100–$250

⏱ 20–40 min

What Does Error 4C Mean on Your Samsung Washing Machine?

Samsung Washing Machine error code 4C: Water supply problem — not filling.

What typically fails: Water inlet valve / supply hose

What You're Probably Seeing

→ Washer not filling with water
→ Long fill time
→ Machine stops mid-cycle

Common Causes

• Cold or hot water supply valve closed or restricted
• Inlet hose screen clogged by sediment
• Low household water pressure or failed water inlet valve

How to Fix It Yourself

1 Unplug the washing machine for 60 seconds then plug back in — this resets the control board and clears many temporary faults
2 Check that the water supply valve behind the machine is fully open
3 Inspect the inlet hose screen filter — sediment often blocks it (unscrew hose, clean mesh screen)
4 Test the water inlet valve with a multimeter — replace if no continuity ($15–$80 part)
5 If the error persists after basic troubleshooting, contact a qualified appliance technician

🛠️ You'll need: Screwdriver set, Pliers, Multimeter · Time: 20–40 min

💡 Try this first: Unplug the appliance for 60 seconds, then plug back in. This resets the control board and clears many temporary faults.

Questions People Also Ask

What does Samsung Washing Machine error code 4C mean? ▼

Error code 4C on a Samsung Washing Machine means: Water supply problem — not filling. The appliance detected this condition and has stopped or limited operation to prevent further damage.

How do I fix Samsung Washing Machine error code 4C? ▼

First, unplug the washing machine for 60 seconds to reset the control board. If error 4C returns, the root cause (water supply problem — not filling) needs to be addressed — check connections, filters, and hoses before calling a technician.

Is it safe to use my Samsung Washing Machine with error code 4C? ▼

It depends on the cause. Most 4C errors mean the appliance has stopped itself as a safety measure. Check the 'Should I unplug it?' section above for specific guidance on this error.

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