KitchenAid KMTM704E Series Technical Education page 4

INTERIOR LED LIGHTING ....................................................................................................................4-6
ACCESSING DOOR COMPONENTS ......................................................................................................4-7
REMOVING USER INTERFACE .............................................................................................................4-8
REMOVING LATCH ASSEMBLY ............................................................................................................4-9
REMOVING DISPENSER ASSEMBLY ..................................................................................................4-10
IN TUB COMPONENTS ......................................................................................................................4-11
SPRAY ARMS, FEED TUBE, AND MANIFOLD .....................................................................................4-12
REMOVING THE RACKS ....................................................................................................................4-13
REMOVING LOWER SPRAY ARM ......................................................................................................4-14
REMOVING PROSCRUB® MANIFOLD & FEED TUBE .........................................................................4-15
REMOVING DIVERTER DISK..............................................................................................................4-16
UNDER TUB COMPONENTS ..............................................................................................................4-18
REMOVING ELECTRONIC CONTROL .................................................................................................4-19
REMOVING HEATER ASSEMBLY ........................................................................................................4-20
REMOVING DRAIN PUMP & SUMP ASSEMBLY ................................................................................4-21
REMOVING OPTICAL WATER INDICATOR ........................................................................................4-24
REMOVING DIVERTER ASSEMBLY ....................................................................................................4-25
MICROFILTRATION WASH SYSTEM PARTS .......................................................................................4-26
REMOVING WASH MOTOR & ROTATING INLET FILTER ....................................................................4-27
ROTATING INLET FILTER PARTS ........................................................................................................4-30
SECTION 5 - DIAGNOSTICS & TROUBLESHOOTING
DIAGNOSTIC & TROUBLESHOOTING WARNINGS ..............................................................................5-1
SERVICE DIAGNOSTIC CYCLE ..............................................................................................................5-3
SERVICE DIAGNOSTIC CYCLE NOTES ..................................................................................................5-4
CUSTOMER CYCLE OPERATION ..........................................................................................................5-4
SERVICE DIAGNOSTICS WITH ERROR CODES .....................................................................................5-5
SERVICE ERROR CODES ......................................................................................................................5-6
TROUBLESHOOTING GUIDE .............................................................................................................5-11
SECTION 6 - TESTING
TESTING WARNINGS...........................................................................................................................6-2
WIRING DIAGRAM ..............................................................................................................................6-3
CONTROL BOARD INFORMATION ......................................................................................................6-4
FUSE SERVICE & RESISTANCE CHECKS................................................................................................6-4
COMPONENT TESTING .......................................................................................................................6-4
ELECTRONIC CONTROL BOARD ..........................................................................................................6-5
METER CHECK OF LOADS & SUPPLIES ................................................................................................6-5
GENERAL THEORY OF OPERATION .....................................................................................................6-6
POWER CHECK ....................................................................................................................................6-6
DOOR SWITCH CIRCUIT ......................................................................................................................6-7
FILL CIRCUIT ........................................................................................................................................6-8
DISPENSER CIRCUIT ............................................................................................................................6-9
WATER HEATING / HEAT DRY ...........................................................................................................6-10
WATER SENSING WITH OWI SENSOR ...............................................................................................6-11
DIVERTER MOTOR ............................................................................................................................6-12
DIVERTER SENSOR / POSITION SWITCH ..........................................................................................6-13
WASH MOTOR ..................................................................................................................................6-14
DRAIN MOTOR ..................................................................................................................................6-15
LOWER SPRAY ARM MOTOR ............................................................................................................6-16
AC FAN MOTOR .................................................................................................................................6-17
INTERIOR LED LIGHTING ..................................................................................................................6-18
USER INTERFACE (UI) ........................................................................................................................6-19
NOTES ...............................................................................................................................................6-20
PRODUCT SPECIFICATIONS & WARRANTY INFORMATION SOURCES (inside back cover)
n KitchenAid 2015 Microfiltration Dishwashers
iv