Fault
CODES
DESCRIPTION SUSPECT
Technical Description
Temperature Sensor error
TE1
Thermister
Main PCB
Thermister terminal not connected
Possible defect : Thermistor , Main PBA
Heater error
HE
Open Heater
Heater Relay
Main PCB
Heater terminal not connected Possible defect : Main Wire-Harness, open
Heater or Heater Relay, Main PBA
High temperature
Heating error.
HE1
Heater relay
Main PCB
Thermister
Water temperature sensed above 176F during operation Possible defect :
Thermistor , Main PBA or shorted heater relay
Low-level water error
9E
Low level Sensor
Level sensor fails to close after 1.2 gallons of water is metered in. If water is
present check for level sensor float stuck in empty position or bad switch
Water supply error
4E
Flow Meter
Water Valve
No Water Supply
Main PCB does recognize proper or no water flow through flow meter.
Check supply and water valve
High temperature
Water supply error
4E1
Incoming Water Temp
sensed above
176F
Faulty Thermister or Main PCB / Incoming water is over 176F
Drain error
5E
Level sensor fails to open
after 3 minutes of drain
Evaluate Drain Operation / Possible kinked drain hose / obstruction in
pump or sump assembly. If water has drained check for level sensor stuck
in closed position.
Over-level Error
OE
Water reaches top of level
sensor container
Suspect stuck water valve / Faulty flow meter or possible drain issue.
Leakage error
LE
Water Present in Base of
D/W
Inspect for leaks / if no leaks present unplug sensor if code goes away
replace leak sensor if not check harness for short or pinched wire before
replacing Main PCB
Button error
6E2
Stuck Button
When a button is pressed continuously for 30 seconds.
Check panel alignment / Main or Sub PCB failure
Door open warning
Door is open in wash or at
start
Door is not close properly.
Possible defect : Door lock switch, Main PBA
How to Diagnose the Issue using the Error codes
Fast Track
Summary of Contents for DMT300 Series
Page 4: ...Required Tools Materials...
Page 5: ...Required Tools Materials...
Page 7: ...Drain Extension Hose 3 8th compression union Dishwasher Extension kit Required Tools Materials...
Page 8: ...Fine Point extended test probes Digital Multimeter Required Tools Materials...
Page 9: ...Fast Track Required Tools Materials...
Page 10: ...Fast Tracks...
Page 11: ...Fast Track What is a Fast Track...
Page 12: ...Fast Track How to download 1 2 3...
Page 13: ...Fast Track Manual Example page Fast Track Product Changes or Notifications...
Page 14: ...Fast Track Checking Components on Main PCB...
Page 15: ...Fast Track Schematic Component Test Chart...
Page 16: ...Test Mode on the fast track Fast Track How to Enter Test mode...
Page 18: ......
Page 20: ...Troubleshooting Description 9 Test Mode 9 Disassembly of Sump Heater 9 Component Description...
Page 22: ...Test Mode How to Enter Test mode...
Page 23: ...Disassembly Storm wash Nozzle DMT Disassembly Removal of the Sump Heater...
Page 26: ...Heater Sump Ass y 30 min faster heating Heater Accessed from the bottom of the D W...
Page 28: ...Main PCB Location Main Board Location on DMR series...
Page 30: ...Rear Leg Adjustment Single Leg in rear Main Board Main Board Location on DW7933 DMT 400 800...
Page 38: ...Thermal Actuator Wax Motor What is a WAX MOTOR Air Vent Dry System Wax Motor...
Page 40: ...Sensors Overflow Low Level Left side of the D W Float arm Overflow Water Level Switch...
Page 42: ...Rear leg adjuster...
Page 43: ...Precautions Improvements...
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...
