KitchenAid KMTM704E Series Technical Education page 97

Troubleshooting Guide (continued)
CUSTOMER
DESCRIPTION
LONG CYCLES AND/OR HEATER TAKES A LONG TIME TO HEAT WATER
STUCK IN CERTAIN PART OF WITH LOW VOLTAGE.
CYCLE
INCOMING WATER UNDER 84° F (29° C)
SUDS OR AIR IN PUMP REQUIRES REPEATED
WASH PERIODS.
OWI OR NTC SENSOR PROBLEM.
LEDS OR DISPLAYS RUN UNIT IS IN SALES DEMO MODE.
FOR SHORT TIME (BUT NO
LOADS RUNNING) AND
THEN SHUTS OFF
OPEN F9 (TRIAC LOAD FUSE) ON CONTROL
DISABLED LOADS.
CAN START A CYCLE BUT CONTROL CANCELLED CYCLE DUE TO ERROR
ONLY RUNS FOR A SHORT DETECTED WITH WASH MOTOR OR LOW
TIME - CYCLE DOES NOT WATER.
COMPLETE (CLEAN LED OR
UNIT IN SALES DEMO MODE
COMPLETED MAY BLINK)
WILL NOT DRAIN OR DRAIN LOOP CHECK VALVE NOT SEALING.
EXCESS WATER LEFT IN
DISHWASHER.
NOTE: CHECK ERROR
HISTORY. IF NO ERROR
CUSTOMER MISUNDERSTANDS WATER LEVEL
CODES FOR ELECTRICAL
AFTER DRAIN.
PROBLEMS, PROBLEM IS
MECHANICAL. DO NOT
REPLACE CONTROL.
DRAINING PROBLEM
DETERGENT NOT ITEM IN LOWER RACK BLOCKED LID OR
DISPENSING OR DETERGENT BLOCKED SPRAY OF WATER TO DISPENSER.
LEFT IN DISPENSER
MECHANICAL BINDING OF DISPENSER LID.
NOTE: CHECK ERROR
HISTORY IF NO ERROR
CODES FOR ELECTRICAL
LID LATCH BINDING DUE TO EXCESS
PROBLEMS, PROBLEM IS
DETERGENT IN MECHANISM.
MECHANICAL. DO NOT
REPLACE CONTROL
DISPENSER ELECTRICAL PROBLEM
CONTROL CANCELLED CYCLE BEFORE
DISPENSING DUE TO ERROR DETECTED WITH
WASH MOTOR OR LOW WATER.
POOR WASH CYCLE SELECTION OF CUSTOMER NOT
APPROPRIATE FOR DISH LOAD.
PLUGGED OR DAMAGED COARSE SCREEN.
LITTLE OR NO WASH PUMP FLOW.
For Service Technician Use Only
POTENTIAL CAUSES
DIAGNOSTICS & TROUBLESHOOTING
CHECK
CHECK FOR AT LEAST 100 VAC AT POWER SOURCE.
1. BE SURE DISHWASHER IS CONNECTED TO THE HOT WATER
SUPPLY.
2. CONFIRM TEMPERATURE AT SINK. RECOMMEND 120° F (49° C).
3. UNPLUG DISHWASHER OR DISCONNECT POWER AND
CHECK ALL CONNECTIONS AND MEASURE RESISTANCE IN
TEMPERATURE SENSING CIRCUIT. REPLACE OWI IF RESISTANCE
IS HIGH.
REFER TO SERVICE ERROR CODES TABLE.
REFER TO SERVICE ERROR CODES TABLE.
CHECK OPERATION OF CANCEL KEY; IF NO CANCEL LED RESPONSE
TO MULTIPLE CANCEL KEY PRESSES, THE CONTROL IS LIKELY IN
SALES DEMO MODE. RUN SERVICE DIAGNOSTICS CYCLE TO CLEAR
DEMO MODE.
REFER TO FUSE SERVICE AND RESISTANCE CHECK ON PAGE 6-4 IN
"TESTING" SECTION.
REFER TO SERVICE ERROR CODES TABLE.
RUN SERVICE DIAGNOSTICS CYCLE TO CLEAR DEMO MODE.
1. DISCONNECT DRAIN HOSE AT PLUMBING CONNECTION.
2. ELEVATE HOSE ABOVE DISHWASHER AND FILL WITH WATER.
IF WATER FLOWS INTO DISHWASHER, REPLACE ENTIRE DRAIN
LOOP. INSTALL AS HIGH AS POSSIBLE.
INSTRUCT CUSTOMER. SUMP WILL NORMALLY HAVE ABOUT 2.4
CM (1 INCH) OF WATER REMAINING IN FILTER CUP HOLE AFTER
CYCLE.
REFER TO SERVICE ERROR CODES TABLE.
INSTRUCT CUSTOMER ON PROPER DISH LOADING.
1. UNPLUG DISHWASHER OR DISCONNECT POWER.
2. CHECK/REPLACE DISPENSER.
INSTRUCT CUSTOMER ON PROPER DISPENSER FILLING.
REFER TO SERVICE ERROR CODES TABLE.
REFER TO SERVICE ERROR CODES TABLE.
INSTRUCT CUSTOMER ON CYCLE SELECTION. RECOMMEND "HIGH
TEMP" OPTION FOR WASH PERFORMANCE BOOST.
INSPECT COARSE SCREEN IN SUMP. CLEAN AND REPLACE
AS NECESSARY. INSTRUCT CUSTOMER ON SIZE OF SOILS
DISHWASHERS CAN PROPERLY DISPOSE THROUGH DRAIN
SYSTEM.
DIVERTER PROBLEM. REFER TO SERVICE ERROR CODES TABLE.
MICRO FILTER MAY BE PLUGGED BY HARD WATER DEPOSITS
OR OTHER MATERIALS. CLEAN FILTER. IF THERE IS APPARENT
DAMAGE, REPLACE FILTER. IF THERE IS HARD WATER, INSTRUCT
CUSTOMER ON PROPER MAINTENANCE.
KitchenAid 2015 Microfiltration Dishwashers
RELATED
ERROR
CODES
6-6
6-3
3-1, 3-3
4-4
6-3
8-1 , 8-2
10-1
4-3, 6-3
9-1, 9-2
n
5-13