Samsung Dishwasher error code 7E
WaterWall reflector fault
Quick answer
On Samsung Dishwasher (2000s onward), 7E is a fault. It means waterwall reflector fault. A first thing to check: Reflector panel not clipped into its track after a clean or a rack being slid back.
- Applies to
- Samsung Dishwasher
- Samsung dishwasher codes · Dishwasher · 2000s onward
- Type of code
- Fault
- Urgency: Book a technician
- First safe check
- Slide out the lower rack and look straight up at the underside of the tub floor.
What 7E means on this model
This model steers water with a reflector panel instead of relying only on a spray arm, and the control checks that the reflector is seated and free to move. Blockages and leftover packing tape are the usual finds.
Symptoms you will notice
- Code appears on models listed as WaterWall
- Dishes come out with a shadow of unclean area rather than a general lack of pressure
- Water is left in the tub after the cycle
- Code appears only on the longest programmes
Common causes
The code tells you what the control detected, not which part failed. These are the causes we see most often, roughly in order of likelihood:
- Reflector panel not clipped into its track after a clean or a rack being slid back
- Packing tape or a shipping strip left on the reflector
- Large items such as pots and cutting boards blocking the path
- Food residue or a glass that has lodged against the reflector
- Reflector track deformed or its spring broken
What you can safely check
These are homeowner-level checks. None of them need you to open a live electrical compartment or work on gas.
- Slide out the lower rack and look straight up at the underside of the tub floor.
- Confirm the reflector is seated on both sides and can still spring up and down freely.
- Run a finger along the reflector for grease, and check for tape on either face.
- Check that tall items in the lower rack are not leaning into the reflector path.
Do not do these
- ×Do not run the machine with the reflector removed or jammed in one position. It will still fill and drain while the wash result collapses.
- ×Do not put oversized trays flat in the lower rack where they block the reflector.
When to call a technician
Worth scheduling, and worth your own checks first
You can usually keep living with this for a short while, but it will not fix itself. Do the safe checks below first, because a tripped switch or a blocked airflow is a five-minute fix that would otherwise cost you a service call.
- If the appliance has stopped mid-cycle, is making a noise you have not heard before, or smells burnt, stop reading here and call. Those are symptoms of something the fault code does not describe well enough.
Reseating a panel and clearing a blockage are owner tasks. A deformed track or a broken spring is a technician job.
What it costs to fix
Parts
Reflector $80 to $200. Reflector spring or clip $10 to $30.
Labor
One to two hours to reach and refit the reflector.
DIY or technician
Reseating a panel and clearing a blockage are owner tasks. A deformed track or a broken spring is a technician job.
Typical US part and labor ranges, 2026. They vary by region, model and contractor, so treat them as a planning figure, not a quote.
Scope of this code
- Code table
- Samsung dishwasher codes
- Models in scope
- Samsung Dishwasher, 2015 onward
- Checked
- Confirm on your own unit
- Find the model number on the data plate, then check this code in the service manual for that model. Manufacturers revise code tables between model years, and a revised board can renumber a fault.