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Samsung DMT300RFB/XAA Troubleshooting Manual

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Models:
DMT300RFB/XAA
DMT300RFS/XAA
DMT300RFW/XAA
Which Detergent Ingredients Give Best Dishwasher Performance
Detergent with a separate rinse additive in the dispenser gives better drying performance.
For tough baked on soils an Enzyme detergent is better at hydration of the food soils.
For staining such as tomato, coffee and tea, a detergent with Chlorine bleach will work on the stains much better than
an Enzyme based detergent.
Now that phosphate content in dishwasher detergent has plummeted to 0.5 percent from as high as 8.7 percent, condi-
tioned (soft) water is even more critical. The reduction of phosphates may cause spots and film on dishes that can form
when the minerals and food bits combine during the wash.
It is important to test water hardness for washability complaints.
Dishwasher Cycle Chart — Air Vent Dry System
# tsDMT300RF RevB 03/21/2011
IMPORTANT SAFETY NOTICE – "For Technicians Only" This service data sheet is
intended for use by persons having electrical, electronic, and mechanical experience
and knowledge at a level generally considered acceptable in the appliance repair trade.
Any attempt to repair a major appliance may result in personal injury and property
damage. The manufacturer or seller cannot be responsible, nor assume any liability for
injury or damage of any kind arising from the use of this data sheet.
SUPPORT INFORMATION
Training — Plus One
http://my.plus1solutions.net/clientPortals/samsung/
Help — GSPN
http://service.samsungportal.com/
Samsung Product Support TV
http://support-us.samsung.com/spstv/howto.jsp
Customer information videos and chat programs
Programs for Fridges, Laundry, Ranges & D/W
Fast Track Troubleshooting
Publication # tsDMT300RF Revision Date 03/21/2011
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Table of Contents
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  Summary of Contents for Samsung DMT300RFB/XAA

  • Page 1 SUPPORT INFORMATION Training — Plus One http://my.plus1solutions.net/clientPortals/samsung/ Help — GSPN http://service.samsungportal.com/ Samsung Product Support TV http://support-us.samsung.com/spstv/howto.jsp Customer information videos and chat programs Programs for Fridges, Laundry, Ranges & D/W Dishwasher Cycle Chart — Air Vent Dry System # tsDMT300RF RevB 03/21/2011...
  • Page 2: Wiring Diagram

    # tsDMT300RF RevB 03/21/2011...
  • Page 3 CN302 CN803 Key Driver Main PCB 1-6 Power Relay Driver (Blk-Org) 10-11 5vdc CN01 CN1 PBA Power 2-6 Heater Relay Driver (Red-Org) 1 120vac L1 (Wht) 4-Trubidity Receiver (Yel) 3 120vac N (Blk) 5-Trubidity Transmitter (Brn) 7-6 5vdc (Pnk-Org) 8-Rinse Aid Sensor (Gry) 9-6 12vdc (Wht-Org) (Pwr On) 9-6 6vdc (Wht-Org) (Pwr Off) CN301...
  • Page 4 Leaking Code Moisture creates resistance between the pins. ALWAYS clean the area below the pins after troubleshooting. Check Pump Ass’y for proper twist lock. Condensation may form on the tray from uninsulated outside walls or large hole in the floor to a cold basement. Check Drain Hose for cut or small hole.
  • Page 5: Error Codes

    CODE Meaning Occurring condition Expected causes SYMBOL Temp When 0.2V or below, or 4.5V or above is Thermistor not connected, Possible Sensor maintained for over 3 seconds defect : Thermistor , Main PBA error Heater When the temperature change is 4℃ or Htr terminal not connected error less within the first 10 minutes after the...
  • Page 6: Service Inspection Mode

    Press the ‗Heavy‘ + ‗Delicate‘ + ‗Power‘ buttons at the same time for two seconds to enter Service Inspection Mode. All LEDs are displayed for the first two seconds and then Software-Ver. It will be indicated Binary Code using ‗Wash + Dry + Clean + Child Lock‘...

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