KitchenAid KUDE20FB*0 Technical Education page 94

DIAGNOSTICS & TROUBLESHOOTING
Service Error Codes #4
FUNCTION PROBLEM
CODE CODE
6-INLET 6-COOL
WATER WATER
7-HEATING 1-NO
HEAT
2-HEATER
STUCK ON
8-DRAINING 1-SLOW
DRAIN
4-DRAIN
MOTOR
ELECTRICAL
PROBLEM
9-DIVERTER 1-DIVERTER
CAN'T
FIND
POSITION
2-DIVERTER
STUCK ON
5-10 KitchenAid 2013 Stainless Steel Tall Tub Dishwasher
n
For Service Technician Use Only
CAUSES
INCOMING WATER UNDER 18 C/65°F.
CONTROL PROGRAMMED TO DISABLE HEATER,
BUT CONTINUE RUNNING CYCLES, IF IT DETECTS
A WATER HEATING PROBLEM.
HEATER CIRCUIT PROBLEM:
- OPEN IN HEATER.
- OPEN CONNECTION OR COMPONENT IN
HEATER CIRCUIT.
FAULTY HEATER DRIVE CIRCUIT ON THE
CONTROL.
FAULTY HEATER DRIVE CIRCUIT ON THE
CONTROL.
OBSTRUCTED DRAIN HOSE OR PATH
DRAIN PUMP IMPELLER FRACTURED OR
DAMAGED
LOOSE CONNECTION IN DRAIN MOTOR CIRCUIT
AND/OR OPEN DRAIN MOTOR WINDING.
OPEN FUSE ON CONTROL TO DRAIN MOTOR.
FAULTY DRAIN MOTOR DRIVE CIRCUIT ON THE
CONTROL.
FAULTY DRAIN MOTOR
CORRODED OR LOOSE CONNECTION IN
DIVERTER SENSOR / MOTOR CIRCUIT.
MECHANICAL BINDING OF DIVERTER SHAFT /
DISC.
OPEN FUSE ON CONTROL TO DIVERTER MOTOR.
FAULTY DIVERTER MOTOR DRIVE CIRCUIT ON
THE CONTROL.
FAULTY DIVERTER DRIVE CIRCUIT ON THE
CONTROL.
WHAT TO CHECK
1. BE SURE DISHWASHER IS CONNECTED TO THE HOT WATER
SUPPLY.
2. CONFIRM TEMPERATURE AT SINK (RECOMMENDED 49°C/120°F).
INSTRUCT CUSTOMER TO RUN WATER AT SINK BEFORE RUNNING
DISHWASHER.
3. UNPLUG DISHWASHER OR DISCONNECT POWER AND CHECK ALL
CONNECTIONS AND MEASURE RESISTANCE IN "TEMPERATURE
SENSING CIRCUIT". REPLACE OWI IF RESISTANCE HIGH.
RUNNING DIAGNOSTICS CLEARS THE CONTROL AND ALLOWS THE
HEATER TO TURN ON AGAIN, BUT MUST ALSO CORRECT THE WATER
HEATING PROBLEM OR THE CONTROL WILL DISABLE THE HEATER
AGAIN. SEE HEATER CIRCUIT PROBLEM BELOW.
1. UNPLUG DISHWASHER OR DISCONNECT POWER.
2. MEASURE RESISTANCE OF HEATER AND ALL COMPONENTS AND
CONNECTIONS IN WATER HEATING CIRCUIT/ HEAT DRY CIRCUIT.
FIX / REPLACE OPEN CONNECTION / PART.
UNPLUG DISHWASHER OR DISCONNECT POWER AND REPLACE
CONTROL.
1. UNPLUG DISHWASHER OR DISCONNECT POWER AND REPLACE
CONTROL.
2. INSPECT HEATER AND CONNECTIONS FOR OVERHEATING /
SHORTING. IF EVIDENCE OF OVERHEATING OR SHORTS EXISTS,
REPLACE.
1. UNPLUG DISHWASHER OR DISCONNECT POWER.
2. CHECK FOR BLOCKAGES FROM SUMP CHECK VALVE TO
CUSTOMER'S PLUMBING. POTENTIAL ITEMS, PLUGGED GARBAGE
DISPOSER OR PLUG NOT KNOCKED OUT, DRAIN LOOP CHECK
VALVE STUCK, AND/OR PLUGGED HOSES.
UNPLUG DISHWASHER OR DISCONNECT POWER AND REPLACE
DRAIN PUMP.
UNPLUG DISHWASHER OR DISCONNECT POWER AND CHECK
RESISTANCES OF DRAIN MOTOR WINDING AND ALL CONNECTIONS
IN THE DRAIN CIRCUIT. FIX / REPLACE OPEN CONNECTION / PART.
REFER TO FUSE SERVICE & DIAGNOSTIC CHECKS ON PAGE 1 NEXT
TO METER CHECK DIAGRAM).
1. CHECK OPERATION IN SERVICE DIAGNOSTICS CYCLE. LISTEN FOR
CAM CLICKING AS IT ROTATES OR INSPECT SHAFT WITH MIRROR
TO SEE IF ROTATING DURING DIVERTER INTERVAL. IF ROTATING,
THEN LIKELY THE SENSOR CIRCUIT.
2. UNPLUG DISHWASHER OR DISCONNECT POWER AND CHECK
CONNECTIONS / PARTS IN DIVERTER SENSOR AND MOTOR
CIRCUIT WITH METER. FIX / REPLACE CONNECTIONS / PARTS.
3. INSPECT DIVERTER SENSOR FOR EVIDENCE OF WATER OR
CONTAMINANTS; IF YES, REPLACE.
CHECK OPERATION OF DIVERTER MOTOR DURING DIAGNOSTICS.
INSPECT DIVERTER SHAFT WITH MIRROR IF MOTOR APPEARS TO BE
ON (HUMS, VIBRATES) BUT SEE LIMITED ROTATION, THEN REPLACE
DIVERTER AND SEAL.
REFER TO FUSE SERVICE & DIAGNOSTIC CHECKS ON PAGE 1 (NEXT
TO METER CHECK DIAGRAM).
1. UNPLUG DISHWASHER OR DISCONNECT POWER AND REPLACE
CONTROL.
2. INSPECT DIVERTER MOTOR AND CONNECTIONS FOR
OVERHEATING / SHORTING. IF EVIDENCE OF OVERHEATING /
SHORTING EXISTS, REPLACE.