20 Most Recent Samsung DMR78AHS Builtin Dishwasher Questions & Answers

Check the brackets that hold the top rack for any broken plastic brackets. My dishwasher was making the same noise and after noticing the broken plastic pieces I pulled out the dishwasher put it on its side removed a white panel on the bottom that is attached with two screws, removed the drain line and inside there were two plastic tabs from the broken bracket. Once those were removed the grinding noise stopped. The bracket holding the drain hose can be removed with a pair of pliers.

There is a nice repair guide with videos that provides troubleshooting steps and instructions for your dishwasher here: Samsung Dishwasher Making Noise

Drain Error OE
Not fully drained out in spite of 5 min. drain operation
The Drain Hose kinked or blocked. Wiring connection is OK? The drain outlet of sump is blocked. The Drain Pump/Motor or circuit is troubled.
Remove the cause of kink or block. Check the wiring connection. Measure the electric resistance of Drain Motor. (20-40 ) Replace the Drain Motor or repair the Circuit

You're probably going to have to replace that case-brake assembly (sensor level assembly). If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

I too have the same problem with my dishwasher. Didn't know about the circuit breaker trick. Will give a try. My husband is ready to throw all our Samsung appliances in the trash. We don't recommend them at all. Re-modeled our kitchen 4 years ago and had all new Samsung appliances installed. What a mistake. In the 1st year we had 2 service calls on the dishwasher, 2 on the stove and 1 on the refrigerator. Have had many problems with the dishwasher. Have been in touch with the company but their approach is you bought it your stuck with it. Thanks for the trick to fix PE error code. I'm NOT getting it fixed. I'll use it till I can't use it anymore then go buy something else.

You've got a broken rope link (the rope that connects the spring to the door, or it may have popped off the guiding pulley. If you can pull the dishwasher out about 6 inches, you should be able to see what is the matter and possibly fix it yourself. If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

Most common problem is a clogged drain hose (or a new garbage disposal that was installed without the drain plugged being knocked out). Next most common cause is something hard getting caught in the drain pump, clogging the impeller. If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

This is usually caused by a bad case-break assembly, or a bad ECS sensor (if your dishwasher has one). If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

Apparently you have water down in the flood area of the dishwasher, where the leak detector is located. Pull the dishwasher out and remove the right-side panel. Pull the insulation up, and look inside with a bright flashlight. The leak detector is located on that side. Depending on the model, you may have to move the motor capacitor out of the way, or move the controller out of the way to be able to get to that area to dry up the water. But the question is, "Where did the water come from?" You may have a bad (leaky) main pump, a bad drain pump, or a crack or hole in one of the hoses (the drain hose is the most common). If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

Check each arm's holes. Lack of water can come from clogged or restricted holes in the arms. If the arms can be removed, check to see if obstruction inside the arms is present. If you find obstruction, you want to remove it and also try to figure out where it comes from so it does not just clog up again. If you can remove the arms, close the door and run the dishwasher long enough to hear whether water is gushing as it should or if there is very little water movement noise. Also make sure the machine actually fills properly to insure that the water line is not kinked. Chances are that the pump could be bad. Search for a new pump on e-bay (where I found mine the cheapest) or do a google search for the part. Pumps are relatively quick to change out. Worst case scenario is that you have a problem with the circuit board and it is cutting off the pump.

To eliminate a dishwasher problem, run a heavy 3 pronged extension cord from a known working outlet to the dishwasher and plug the dishwasher into the cord. If you still have no power (dishwasher is not showing any signs of life) then it is a dishwasher problem (circuit board, bad connection from dishwasher cord to dishwasher, etc). If the dishwasher actually shows signs of life, then you may have a tripped breaker. Check the breaker to make sure it is on and that the tab is not either in the center or the off position. Also, try moving the dishwasher cord's plug from the outlet it is currently in to another outlet in the under sink area. There is a chance that the plug got switched from the normal outlet to the outlet that controls the garbage disposal, that outlet should only be hot when the disposal wall switch is flipped to the on position.

he error code is a heating error. check the wire connections to the heater, if no problem then you need to check for continuity to the heating element. You'll need a meter to do this. The heater assembly may need replacing. I think they run around $60. We had a Samsung DW for 4 years...finally gave up & replaced with a GE which has been working well.

We had a Samsung dishwasher for 4 years which I finally replaced with a GE. Always had a problem with a smell. I believe it's because Samsung dw's do not drain properly. I took the filter assembly apart several times (at the bottom of the unit) and cleaned it (was always full of greasy black gunk). This would help temporarily. I will never again buy a Samsung dishwasher (or refrigerator).

According to Samsung it is a drain error. Best advice from Samsung is: Check whether the drain hose is clogged or folded. If the problem continues, close the water supply valve, and then contact an authorized Samsung service center. My drain hose was not clogged or folded and the error code would go away at best for a day of so. Finally, it would not go away at all. My solution was to simply go to e-bay and for $27 had a new pump shipped to me. Less than 15 minutes to change out and no problem since. Be aware that the new pump may make noise for the first few runs, but this goes away. I figure the pump just needed to run in for a bit. Pump is on bottom. Remove and invert dishwasher. Remove screws holding bottom plastic cover and pump is right there. Unhook the wire harness to the sensor in the plastic cover. Remove the wires to the pump (two different wires, I would make a note of where each color went). Turn the pump about a quarter turn to the left and it comes right off. Put the new pump in the same position as the pump was when removed. Push in and turn to the right until it locks in place. Replace wires to pump and the plastic cover. Screw plastic cover in place, turn the dishwasher back upright and reinstall. Once in place and all plumbing and electrical connections reconnected it should work without a hitch.

4. Troubleshooting

4-2

4-2. Service Inspection Mode

- Press the Delay Start + Normal + Power keys at the same time for two seconds to enter Service Inspection Mode.

- "ALL" is displayed for the first three (3) seconds and then "t1" is displayed.

- You can change the mode by pressing the Normal key. Each time the Normal key is pressed, the mode changes in the order of t1 ? t2 ? t3 ? t4 ? t5 ? t6 ? t7 ? t8.

- If you want to activate a mode while operating the dishwasher, the door must be closed (The Door switches are ON.)

- If an "oE", "LE" or "tE1" error occur, make sure to enter Service Inspection Mode after resolving it.

- Service Inspection Mode is described in the following table.

Mode Related parts Symptoms Note

t1

Inlet Valve

Flow Meter

Low Level Sensor

4E

9E

If you press the Delay Start key, water is drained for 45 seconds and then the water supply starts.

If the pulse count is more than 660, change the mode.

Make sure to change the mode when the pulse count is more than 660 in t1 mode.

t2 Circulation Motor A nozzle does not inject

water.

1. Press the Delay Start key to start or stop the Circulation Motor.

2. If a low water level is detected, water is supplied again and the operation continues.

t3

Circulation Motor

Heater

Thermistor

HE

1. Press the Delay Start key to start or stop the heater and the circulation Motor.

2. If a low water level is sensed, water is supplied again and the operation continues.

3. The current temperature is shown on the display.

4. If the water temperature is more than 70?C, the Heater does not operate.

t4 Fan Motor The Fan Motor does not

operate. Press the Delay Start key to start or stop the Fan Motor.

t5 Drain Pump

Low Level Sensor 5E 1. Press the Delay Start key to start the 2 parts.

2. When draining is finished, "t5" is blinking on the Display LED.

t6 Low Level Sensor

When the Micro Switch

is turned on/off, there is

no change on the display

or a symbol other than

On/OFF is displayed.

1. MICRO SWITCH On

? The sensing state is displayed as 'On' on the 88 segment display.

2. MICRO SWITCH Off

? The sensing state is displayed as 'OFF' on the 88 segment display.

t7 Thermistor There is no change in the

water temperature. The current temperature is displayed.

t8

Half Load Position of

Distributor Motor

Micro Switch

(DMR77 Model)

PE

1. If you press the Delay Start key, the parts operate just once.

2. There is no stop function.

3. While the Distributor Motor is operating, its sensing state is displayed as On/OFF on the 88 segment display.

4. When the Distributor Motor stops, the sensing state (On/OFF) of the Micro Switch is displayed.

Caution

If it has the power problem, you must check the FUSE first.
This dishwasher has the FUSE upon the Base. Refer to the 4-10 page.
Try these steps to solve your error there is no CE code listed in the manual

We have had constant problems also...even went as far as taking the dishwasher apart. Did somewhat fix one problem by removing a piece of plastic that had gotten into the water pump. It still wasn't "right" so we talked with Lowe's about our problems and they finally agreed to sell us another dishwasher at a greatly discounted price and offered free installation. It was installed yesterday. It's a GE, not as "pretty" as the Samsung but hopefully it will actually wash the dishes.