Samsung 4E error

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Samsung washing machine showing 4E despite parts replacement

The problem

A Samsung washing machine displayed 4E. The user reported it would fill and work on the rinse cycle but not on other cycles. The water supply had been checked, and the inlet solenoid described as rusted was replaced, followed by replacement of the pressure switch, but the 4E fault remained.

Likely cause

The accepted diagnosis was a water supply / water level sensing fault. 4E was described as being triggered when no change in water level is detected within two minutes during fill. If water is entering, the most strongly supported possibilities were siphoning, so water runs straight to drain, or a blockage in the pressure chamber / pressure system preventing the pressure switch from detecting the rising level.

What fixed it

Recommended action was to confirm whether water is actually entering and whether the water level rises normally. If water enters but does not stay in the drum, check for siphoning. If water enters and the level continues rising without the wash starting, check the pressure chamber / pressure system for blockage. The exact repair carried out was not confirmed in the discussion.

Checks to try

• Water supply checked
• Inlet solenoid replaced
• Pressure switch replaced
• Observe whether water is entering the machine
• Check whether water is running straight down the drain (siphoning)
• Check for blockage in the pressure chamber / pressure system
• Observe whether water level keeps rising in the drum

Parts or tools mentioned

• Inlet solenoid
• Pressure switch