4E
Samsung Refrigerator
Severity: ModerateWhat Does This Error Mean?
The 4E error means the ice maker is not receiving water. The refrigerator cannot fill the ice tray to make new ice. Your ice maker will stop producing ice until this is resolved.
Affected Models
- RF28HMEDBSR
- RF23HTEDBSR
- RF28K9580SR
- RF25HMEDBSR
- Most Samsung French door and side-by-side refrigerators with ice makers
Common Causes
- The water supply valve behind the refrigerator is turned off
- The household water supply line to the fridge is kinked or pinched
- The water inlet valve (inside the fridge) is clogged or has failed
- The water filter is clogged — restricting water flow to the ice maker
- Water pressure from the household supply is too low (below 20 PSI)
How to Fix It
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Check the water supply valve behind the refrigerator — make sure it is fully open.
It should be turned counterclockwise to fully open position.
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Inspect the water line running from the wall to the fridge for kinks.
Pull the fridge away from the wall slightly to check the full length of the line.
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Replace the water filter if it has not been changed in the past 6 months.
A clogged filter restricts water flow enough to trigger the 4E error.
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Reset the ice maker — press the Test button on the ice maker for 3 seconds.
The location of the test button varies by model — check your user manual.
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Power cycle the refrigerator — unplug for 5 minutes and restore power.
Allow 24 hours for ice production to resume fully after a reset.
When to Call a Professional
If water supply and filter are fine but the error persists — the water inlet valve may be faulty. This part controls water flow electronically and needs professional replacement. Expect $80–$180 for a valve replacement including labor.
Frequently Asked Questions
How do I know if my Samsung fridge water inlet valve is bad?
If water supply and filter checks out fine but no water flows to the ice maker — the inlet valve is likely faulty. You can test it with a multimeter for continuity, or have a technician do it.
My Samsung fridge makes ice but shows 4E — is that possible?
Yes — if water pressure is borderline low, the fridge may make some ice but still trigger the error. Check your home water pressure with a gauge (available at hardware stores). It should be at least 20 PSI.
How often should I change my Samsung refrigerator water filter?
Samsung recommends every 6 months. A clogged filter is one of the most common causes of ice maker and water dispenser problems. The fridge will usually show a Filter Reset indicator when it is due.