Samsung Dishwasher Repair

A Samsung dishwasher that leaves a gritty film, stops with water at the bottom or runs for hours without drying is easy to blame on the detergent. Sometimes it is, but just as often the cause is mechanical: a clogged filter, a drain path that backs up from the sink, a spray arm that no longer turns or a heating circuit that does not finish the job. In San Francisco kitchens, where a dishwasher may share a drain with a garbage disposal in a tight cabinet run, the installation matters as much as the machine. We diagnose standard and Waterwall models and the larger 48 inch and 38 inch units.

What commonly goes wrong

Standing water after the cycle

Water left in the tub usually means the drain path is restricted. The suspects are the filter and sump, the drain hose with a kink or a high loop that is missing, the disposal knockout plug left in place after installation, or a drain pump that hums without moving water. Our post on a dishwasher that will not drain shows the outside checks.

Fills, then stops washing

If the dishwasher takes in water and then goes quiet, the machine may be waiting on a level reading, a circulation pump or a door signal. Read fills then stops washing for the sequence of things to watch.

Leaks at the base

Water at the floor can come from the door gasket, an overfilled dispenser, a loose supply fitting or a cracked hose underneath. We look for the first point of wetness before judging. See leaks at the bottom of the base.

Dishes still wet or detergent not dissolving

A drying problem can come from a vent, a rinse aid reservoir that has run out or a heating element that is weak, and a pod that stays whole in the dispenser may signal a stuck dispenser door. We cover both in dishes not drying and pod not dissolving.

Grinding, humming or rattling

A glass shard in the sump, a loose spray arm or a worn pump bearing all sound alike from across the room. Our article on dishwasher grinding and humming describes the differences.

How the diagnosis goes

We ask which cycle you run, whether the problem is new, and what changed recently, such as a new disposal, a moved cabinet or a power flicker. Then we check the model and the code, look at the supply and drain connections, and test the system that fits the symptom: inlet valve, pump, spray arms, dispenser and heater. A written estimate follows the findings, and no repair begins without your approval.

Dishwasher error codes

Samsung dishwashers display compact codes. We have these pages:

• 5C, SC, 5E and SE are drain errors: the dishwasher cannot drain.
• 4C and 4E are water supply errors, where pressure or temperature is insufficient.
• 9E is a low water level.
• 1E applies to Waterwall models with a clogged filter.
• 3E means the incoming water is too hot.
• 6C and bE mean a key is detected as permanently pressed.
• 9C1 is a voltage protection state, often after a power flicker or breaker trip.

A code names a circuit or symptom, not an automatic part replacement.

Installation details that change the diagnosis

An undercounter dishwasher shares its space with a sink drain, a supply line and often a disposal. If the drain hose does not rise into a high loop under the counter, or connects to a disposal whose knockout plug was never removed, water struggles to leave. A supply that is only partly open gives a fill fault or very long cycles. The unit also must be level and fastened under the counter so the door closes squarely. In older homes, ground-floor flats and rentals, we often find that previous repairs left hoses stretched or pinched. Tell us if there is a disposal, an air gap, or limited cabinet clearance.

The door and the dispenser also depend on how the unit sits. A dishwasher that has settled forward can let the door drop slightly, so the latch engages poorly and the gasket leaks at one corner. We check the leveling feet and the mounting brackets as part of every visit, and we explain what we see before suggesting a repair. If a dishwasher was recently moved for a countertop or flooring project, mention it; supply and drain fittings are often disturbed during that kind of work.

What you can check safely

1. Confirm the power: the breaker, and any wall switch that feeds the dishwasher or disposal.
2. Close the door firmly and make sure nothing blocks the latch or gasket.
3. Remove the lower rack and clean the filter and sump area of food and glass.
4. Run the sink and disposal clear, then check that the supply valve under the sink is open.
5. Check that spray arms spin freely and that the dispenser door is not jammed.
6. Write down the code and try one controlled power reset at the breaker.

Do not open the lower access panel to handle wiring, and do not run a unit that leaks onto the floor.

When to stop using it

Turn the dishwasher off and shut the supply if water leaks onto the floor or toward cabinets. If you smell burning, or the unit trips the breaker, leave the breaker off. Standing water with a bad odor can wait for a visit, but do not keep running cycles into a blocked drain.

Why the model number matters

Samsung dishwashers differ in sump design, in Waterwall features, and in door and control layout. The label is usually along the edge of the door or inside the tub rim. Our model number guide lists the usual spots.

Related pages

For lineup details read the Samsung dishwashers guide. Models we are asked about include the DW70H83YETRAA, the DW90H89TETEAA and the DW50T6060US/AA.

Frequently asked questions