Maytag MDB series User Manual

DIAGNOSTICS & TROUBLESHOOTING
Maytag Chopper Dishwashers
n
2-5
For Service Technician Use Only
Service Diagnoscs With Error Codes
Entry Sequence:
START/RESUME

NOTE:

6
Service Diagnostics with Error Codes
Entry sequence: Press any 3 keys in the sequence 1-2-3-1-2-3-1-2-3 with no more than 1 second between key presses.
NOTE: Some models have replaced the “CLEAN” LED with “COMPLETE.”
If no error, “Clean” LED stays on for 5 seconds or display shows “F-” or “E-”.
NOTE: Once error codes are extracted, refer to the “Service Error Codes” table to diagnose and correctly resolve the root cause condition.
L1
BK
P4-2
P7-3
P10-1
P7-1
P4-1
N
WH
BUBU
K2
Fuse
F9
Pin 1
Pin 3
N.O.
Electronic Control
Electronic Control
Tr iac
No test pad on P7-3.
Recommend using test pad on P10-1.
AC Fan (not on all models)
Use top of jumper
W2 as test point for F9.
Fan Motor
60
Ω -80Ω
120 V, 60 Hz, 12 Watts
Pilot L1 Relay
(Also see Door
Switch Circuit)
DISPLAY TEST - ALL LEDS ON
INTERVAL 28
ERROR 1 - MOST RECENT
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 27
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
ERROR 2
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5seconds
INTERVAL 26
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
ERROR 3
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 25
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
ERROR 4 - OLDEST
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 24
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
10 seconds pause Hi Temp LED will be on
INTERVAL 23
Press Hi Temp key to clear errors. Hi Temp LED will blink twice to indicate errors have been cleared.
Service Diagnostics Cycle
INTERVAL 22-3
Turns on loads and checks sensors.
SERVICE CYCLE ERROR 1
A tone will play when service error code 1 is displayed
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 2
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
S
ERVICE CYCLE ERROR 2
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 1
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
SERVICE CYCLE ERROR 2 INTERVAL 1
INTERVAL 2
INTERVAL 18-3
INTERVAL 19
INTERVAL 20
INTERVAL 21
INTERVAL 22
INTERVAL 23
INTERVAL 24
INTERVAL 1
INTERVAL 2
INTERVAL 18-3
INTERVAL 19
INTERVAL 20
INTERVAL 21
INTERVAL 22
INTERVAL 23
INTERVAL 24

Maytag MDB series Specifications

General

Type	Built-In
Capacity	14 Place Settings
Tub Material	Stainless Steel
Energy Star Certified	Yes
Soil Sensor	Yes
Heated Dry	Yes
Control Type	Electronic
Delay Start	Yes