Customers complaint was unit making grinding noise and would not clean, but the pump never starts up.

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
•Just like the DMR series you advance through the test next mode by pressing the Normal button . However each test will run by itself (see sequence chart on next page) when test has completed an led will light to indicate test is done and you can then advance to the next test .
•Code list and descriptions located on pp#3. Note: Like the DMR series the codes are displayed during operation or test modes and are not stored in memory.
Service Test Modes & Codes
‘Quick’
Inlet Valve
Flow Meter
Low Level Sensor
Water Supply Error
Low Level Water Error
‘Normal’ + ‘Heavy’ + ‘Delicate’ LED
If Door is open, ‘Delicate’ + ‘Quick’ LED will blink.
Water is supplying after low level S/W is detected. If low level S/W is high, Draining at first.
If water is not supplied, Water Supply Error (‘Quick’ LED 4E) will blink.
When water level is low after water is supplied, Low Level Water Error (‘Normal’ + ‘Heavy’ + ‘Quick’ LED 9E) will blink.
When Turbidity problem is detected after water is supplied, ‘Normal’ + ‘Heavy’ + ‘Delicate’ LED will blink.
If all functions in this mode are completed, ‘Wash’ LED will blink.
No.2
‘Delicate’
Circulation Motor
Spray arms water distribution
If Low Level S/W is detected before Circulation Motor is operating, ‘Sanitize’ LED will blink.
No.3
‘Delicate’ + ‘Quick’ LED
Circulation Motor
Heater
Thermistor
Heater Error
If Low Level S/W is detected before Circulation Motor is operating, ‘Sanitize’ LED will blink.
Circulation Motor and Heater will be operated.
When the temperature is 60℃ or above, the heater is turned off and ‘Wash’ LED will blink.
If Heater or Thermistor have problems, the Heater Error (‘Heavy’ + Delicate’ LED) will blink.
Dispenser will operate during 2 minutes and 10 seconds only one time.
No.4
‘Heavy’ + ‘Quick’
Fan Motor
Dispenser
The Fan Motor does not work.
Operate Vent Motor and check whether Rinse aid is filled.
If there is not rinse in Dispenser, Rinse Refilled light is ON.
No.5
‘Heavy’ + ‘Delicate’ LED
Overflow Sensor
Over level water error
Water is supplied until Over Level Water Error (‘Heavy’ + ‘Quick’ LED) is blinked.
If Over Level Water Error occurs, overflow sensor is OK.
No.6
‘Heavy’ + ‘Delicate’ + ‘Quick’
Drain Pump
Low Level Sensor
Drain Error
Drain pump will work until low level is detected.
If Low level is not detected after 60 seconds, Drain Error (‘Delicate’ LED) will blink.
No.7
‘Normal’ + ‘Quick’ LED
Inlet Valve
Circulation Motor
Fan Motor
Drain Pump
Heater
Operate each operating part when the button is pressed. (See the sequence to the right)
When the ‘Quick’ is pressed, it toggles between Inlet Valve On (‘Quick’ LED On) -> Off (‘Quick’ LED Off).
When ‘Heavy is pressed, it works Circulation Motor On (‘Heavy’ LED On) -Off (‘Heavy’ LED Off) -> Fan Motor On (‘Heavy’ LED On) -> Off (‘Heavy’ LED Off), Drain Pump On (‘Heavy’ LED On) -> Off (‘Heavy’ LED Off)
When ‘Delicate‘ is pressed, it woks Heater On (‘Delicate’ LED On during 2 seconds).
When a different button is pressed operation of the operating part, is stopped and the applicable operation for the pressed button’s function will start.