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Samsung Dishwasher 7E / 7C Error Code
Waterwall reflector blocked or misplaced. Here is what it means and how to clear it, easiest fix first.
On Waterwall models, the reflector that slides along the back of the tub to direct water can't move properly. Usually something in the load is in its way, or the reflector isn't seated correctly.
Applies to Waterwall models. Samsung's US guide treats 7E and 7C as the same code. On UK models, 7C is listed as a spray bar that stops moving and needs support.
How to fix Samsung 7E / 7C
Clear the reflector's path
Switch off the breaker or unplug the dishwasher first. Pull out the bottom rack and look for anything long, such as a utensil or a pan handle, that sits in the reflector's path along the back wall. On a newly installed dishwasher, check the top of the guide rail for leftover packing tape and peel it off.
Check the reflector's position
When fitted correctly, the Waterwall logo on the reflector points toward you and upward. If it is the wrong way round, take the vane off, reverse it, and press it back onto the gray carrier that rides on the rail.
Power cycle the dishwasher
Switch the dishwasher off at its circuit breaker (or unplug it) and wait about 2 minutes. Restore power and start a fresh cycle. If the code clears and stays away, it was likely a one-time glitch.
When to call a technician
If the reflector moves freely and is fitted correctly but the code returns after a power cycle, request service. The reflector motor or drive may be faulty.
Parts that commonly cause 7E / 7C
- Waterwall reflector (vane)
- Waterwall motor
Order parts by your exact model number so they fit.
Other Samsung dishwasher codes
- 4C / 4ENot enough water coming in
- 5C / 5E / SC / SEDishwasher is not draining
- OC / 0C / OEToo much water in the tub (overfill)
- LC / LELeak detected
- 1E / IEClogged filter or overheating (depends on model)
- HC / HEHeater or overheating error
- tE / tCTemperature sensor error
- 3CWash pump error
- 3EIncoming water too hot (US) or pump error (UK/AU)
- 9E / 1CLow water level
- bE / 6E / 6CStuck button
- CE / ACCommunication error between boards
- PC / PEZone Wash or Half Load error
- 9C1 / 9E1 / UCPower supply problem
- DCDoor not closed properly
- APWi-Fi setup mode (not a fault)
Frequently asked questions
What does 7E / 7C mean on a Samsung dishwasher?
On Waterwall models, the reflector that slides along the back of the tub to direct water can't move properly. Usually something in the load is in its way, or the reflector isn't seated correctly.
Can I fix Samsung 7E / 7C myself?
Usually, yes. Most 7E / 7C problems clear with simple checks you can do at home. Start with the first step above: clear the reflector's path.
What if 7E / 7C keeps coming back?
A code that returns after a reset and the checks above usually means a part is wearing out. Note when 7E / 7C appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.
Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.