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Samsung DMT300 Service Training

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Features
Extra Large Capacity
Digital Touch Sensors
Increased Convenience
Super Quiet Operation
No Filter Cleaning Required
2013 DISHWASHER
Service Training
All models
Current Models
DW7933
DMT300
DMT400 DMT800
DMR78 DMR 77, DMR 57

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Table of Contents
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  Summary of Contents for Samsung DMT300

  • Page 1 2013 DISHWASHER Service Training All models Features Current Models Extra Large Capacity DW7933 Digital Touch Sensors DMT300 Increased Convenience DMT400 DMT800 Super Quiet Operation DMR78 DMR 77, DMR 57 No Filter Cleaning Required...
  • Page 2 Table of Contents Required Tools & Materials Fast Tracks Troubleshooting & Description of Parts Precautions & Improvements...
  • Page 3 Samsung HA Warranty • ALL Warranties are subject to change, always verify. • 1 Year Parts & Labor Base Warranty • Some items may have longer Warranties, Check Owners Manual or 800-SAMSUNG – D/W 5 years Printed Circuit Board, Racking and Lifetime Stainless Door Liner &...
  • Page 4 Required Tools & Materials...
  • Page 5 Required Tools & Materials...
  • Page 6 Required Tools & Materials Dishwasher Extension kit 6 to 8’ 16-3 Heavy duty 5 to 8’ stainless steel extension cord dishwasher extension supply hose...
  • Page 7 Required Tools & Materials Dishwasher Extension kit Drain Extension Hose compression union...
  • Page 8 Required Tools & Materials Fine Point extended test probes Digital Multimeter...
  • Page 9 Required Tools & Materials Fast Track...
  • Page 10 Fast Tracks...
  • Page 11 Fast Track What is a Fast Track...
  • Page 12 Fast Track How to download...
  • Page 13 Fast Track Fast Track Manual Product Changes or Notifications Example page...
  • Page 14 Fast Track Checking Components on Main PCB...
  • Page 15 Fast Track Schematic / Component Test Chart...
  • Page 16 Fast Track Test Mode on How to Enter Test mode fast track...
  • Page 17 Fast Track How to Diagnose the Issue using the Error codes Fault DESCRIPTION SUSPECT Technical Description CODES Temperature Sensor error Thermister Thermister terminal not connected Main PCB Possible defect : Thermistor , Main PBA Heater error Open Heater Heater terminal not connected Possible defect : Main Wire-Harness, open Heater Relay Heater or Heater Relay, Main PBA Main PCB...
  • Page 19 Dishwasher “LE” Code Pins to detect water by change in resistance Pump ass’y not properly twist locked LE code, CLEAN area after Fault code Condensation may form, from an un-insulated outside wall or hole in floor to basement Hose Cut...
  • Page 20 Troubleshooting & Description Test Mode Disassembly of Sump & Heater Component Description...
  • Page 21 Test Mode How to Enter Test mode To access Service Test Mode Door Must Be Closed • Press the Heavy + Delicate + Power buttons at the same time for two seconds to enter Service Test Mode. • All LEDs are displayed for the first two seconds and then Software version will be indicated in Binary Code using LEDS ….Wash / Dry / Clean/Child Lock •...
  • Page 22 Test Mode How to Enter Test mode...
  • Page 23 Disassembly Disassembly Removal of the Sump & Heater Storm wash Nozzle (DMT)
  • Page 24 Disassembly and Reassembly - 5. PUMP CIRCULATION (1/2) Disassembly Removal of the Sump & Heater Don’t let the screwdriver slip...
  • Page 25 Disassembly Disassembly Removal of the Sump & Heater Filter Mesh body Cover Sump Assy Sump All models - Upper parts...
  • Page 26 Heater-Sump Ass’y, 30 min faster heating Heater Accessed from the bottom of the D/W...
  • Page 27: Turbidity Sensor

    Circulation Mtr 2 Speed Drain Pump Half Load Blocks water flow Heater, Pull D/W to bottom rack to access Turbidity Sensor Thermistor...
  • Page 28 Main Board Location on DMR series Main PCB Location...
  • Page 29 Disassembly and Reassembly - 6. Panel Control part (1/2) Main Board Location on DMT300 series Main PCB...
  • Page 30 Main Board Location on DW7933 –DMT 400 & 800 Rear Leg Adjustment Single Leg in rear Main Board...
  • Page 31 Main Board Removal of plastic shield will allow wire access for Multimeter Probes Lift the corner of the plastic shield and just lift it out. To remove you can use a needle nose pliers, or a small flat head screwdriver. Once the shield is removed you will have enough room to fit the probes into the connection to take your readings.
  • Page 32: Flow Meter

    Flow Meter Monitors the flow of water entering the unit Normal water fill, very little water used approx. 0.9~1.1 gal Flow meter must count the water flow for this unit to operate Water level switch is activated by water from the inlet only. You can’t just pour water into the unit to test it.
  • Page 33 Adjustable Spray Arms Water Flow path Adjustable Cracked spray arms will cause leaks or poor wash ability Replaces top rack...
  • Page 34 Half Load Wash Directs Water to the upper Rack The Half load motor will Direct the water flow to the upper rack only. The lower dispenser will be blocked during this mode...
  • Page 35 Air Vent Dry System DMT300/DW7933 This system circulates air inside the wash tub with outside air using a plenum inside the door assembly.
  • Page 36 Air Vent Dry System Ass’y Case Vent Warm (not hot) air vented at bottom of Ass’y Dry Duct door. Room Air In D/W Air In Ass’y Duct Condenser Air Diffusion Condensing dry system Vent Air Out Room Air In...
  • Page 37 Air Vent Dry System Thermal Actuator = Wax Motor Thermal Actuator opens vent seal When fan is powered, wax motor opens vent...
  • Page 38 Air Vent Dry System Wax Motor Thermal Actuator = Wax Motor What is a WAX MOTOR?
  • Page 39 Overflow Water Level Switch DMT800 & 400 Sensors, Overflow & Low Level Left side of the D/W OE Fault code: High water pressure may cause water in the sensor tank to fill before sump fills, water hits top sensor and creates the code.
  • Page 40 Overflow Water Level Switch Sensors, Overflow & Low Level Left side of the D/W Float arm...
  • Page 41 Detergent/Rinse Aid Dispenser Testing 1. Disconnect the wires from dispenser. wax motor & close detergent door. 2. Put the unit into service mode and check for 120 VAC to the wax motor 3. In approximately 40 seconds the wax motor will open the door.
  • Page 42 Rear leg adjuster...
  • Page 43 Precautions & Improvements...
  • Page 44 Precautions Wash ability Issues 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.
  • Page 45 Precautions No Soap Soap Dispenser Does Not Open Soap Dispenser Does Not Open Properly and/or Soap is Running Down The Door at the end of the cycle. Two complaints that indicate improper loading of the lower rack.
  • Page 46 Precautions Leaking Door Leakage from the door...
  • Page 47 Improvements Quietness...
  • Page 48 Improvements Hidden Dryer Element...
  • Page 49 Improvements Food Residue...
  • Page 50 Improvements Loading Flexibility...
  • Page 51 Improvements Leakage Sensor...
  • Page 52 Improvements 3 wash Arms...
  • Page 53 Improvements Condensed Drying...

This manual is also suitable for:

Dw7933Dmt400Dmr 77Dmr 57Dmt800Dmr78