SOURCE: Samsung dishwasher flashing heavy light
Anytime a dishwasher stops mid cycle and blinks, it is usually because of clogged drain port, and safety switch prevents next cycle, so just blinks. You will probably see bottom of tub filled with water, and float switch is preventing next cycle which is calling for more water, and obviously there is not enough room, so shuts down next cycle. Remove as much water as you can with wet vac or turkey baster to suck out water, then try and see if cycle starts.
Remove bottom of tub filter, look for drain hole usually at back of tub and see if it is clogged, usually visible at top of drain. Pretty easy to fix, just clean out the area of food waste or broken piece from glass, another common sudden blockage. If you have wet vac, place it over drain hole and cup your hand around nozzle of vac and hole to creat seal and suction to insure clog isn't in drain hose.
Good luck, FREE-BUSINESSES.com
SOURCE: Samsung dishwasher flashing heavy light
Had a look in the user manual for your dishwasher.http://downloadcenter.samsung.com/content/UM/201211/20121101114232459/DW7933LRASR-00141A-02.pdf
Page 26 shows blinking Heavy light means there is leakage in the dishwasher. Most likely there is water in the base under the drain sump which could cause the flood switch to trip. Turn mains power to dishwasher off. Pull it out from under kitchen bench without breaking the hoses. Put some towels on the floor and turn dishwasher back and forth on incline to get water out. Wait a little and turn on. If no difference then you need to dry the base and find the source of the leak. More likely the door seal.
SOURCE: Samsung dishwasher flashing heavy light
For Samsung DW80M9 Dishwasher had same problem of flashing light (remaining minutes and not an error code) and stopped mid cycle. Pulled lower rack out to inspect drain and noted tab from lid was protruding below the rack and preventing the lower spray bar from moving toward the front of the dishwasher. Removed obstruction and all is good.
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