KitchenAid KMTM704E Series Technical Education page 98

DIAGNOSTICS & TROUBLESHOOTING
Troubleshooting Guide (continued)
CUSTOMER
DESCRIPTION
POOR WASH SPRAY ARMS NOT ROTATING OR PLUGGED.
POOR WASH DUE TO DRAINING, DISPENSING
AND/OR TEMPERATURE PROBLEMS.
CONTROL CANCELLED CYCLE DUE TO ERROR
DETECTED WITH WASH MOTOR OR LOW
WATER.
SOIL SENSOR PROBLEM
HEATING PROBLEM
SOFTENER PROBLEM
(ONLY SOME MODELS)
FILM OR SPOTS ON GLASSES CUSTOMER NOT USING RINSE AID AND/OR
AND/OR DISHES HEATED DRY.
RINSE AID DISPENSER PROBLEM.
FILM OR SPOTS ON GLASSES HARD WATER LEAVING FILM ON DISHES.
AND/OR DISHES
CONTINUED
DETERGENT CARRYOVER OR OVER-SUDSING.
ETCHING OF GLASS FROM TOO MUCH
DETERGENT AT TOO HIGH OF TEMPERATURE.
DIVERTER PROBLEMS
DRAIN LOOP CHECK VALVE NOT SEALING.
KitchenAid 2015 Microfiltration Dishwashers
n
5-14
For Service Technician Use Only
POTENTIAL CAUSES
DIVERTER PROBLEM
DIVERTER DISC MISSING
CHECK
1. CHECK ARM ROTATION. IF ARMS BLOCKED BY DISH ITEM,
INSTRUCT CUSTOMER. ALSO CHECK FOR CORRECT UPPER
SPRAY ARM ALIGNMENT WITH DOCKING STATION LOCATED ON
FEED TUBE AT BACK TUB WALL.
2. CHECK NOZZLES; IF THEY ARE PLUGGED, CLEAN NOZZLES.
PLUGGING MAY BE CAUSED BY HARD WATER BUILD-UP
IN WATER DELIVERY SYSTEM OR DAMAGED PUMP FILTER.
INSPECT WATER DELIVERY SYSTEM FOR HARD WATER BUILD-
UP, CLEAN. INSPECT AND SERVICE PUMP FILTER.
3. CONTROLLED LOWER SPRAY ARM MOTOR FAILED. CHECK
SPRAY ARM MOVING DURING DIAGNOSTICS CYCLE.
SEE "WILL NOT DRAIN OR EXCESS WATER LEFT IN UNIT",
OR "DETERGENT NOT DISPENSING OR DETERGENT LEFT IN
DISPENSER", OR DETAILS ON TEMPERATURE SENSING IN "LONG
CYCLES AND/OR STUCK IN CERTAIN PART OF CYCLE".
REFER TO SERVICE ERROR CODES TABLE.
REFER TO SERVICE ERROR CODES TABLE NOTE: EVEN IF NO ERROR
CODE RECORDED, CONFIRM OWI PASSES ALL OWI CHECKS IN
SERVICE DIAGNOSTICS CYCLE AND SEE CHECKS FOR ERROR 3-3.
REFER TO SERVICE ERROR CODES TABLE.
REMOVE OUTLET COVER AND INSPECT FOR RED PLASTIC DISC
THROUGH HOLES IN OUTLET. INSTALL NEW DISC IF MISSING.
REFER TO SERVICE ERROR CODES TABLE.
REFER TO SERVICE ERROR CODES TABLE.
CHECK RINSE AID GAGE LEVEL ON DISPENSER. INSTRUCT
CUSTOMER HOW TO FILL AND MONITOR ADD OR USE RINSE AID.
REFER TO SERVICE ERROR CODES TABLE.
CHECK WATER HARDNESS. IF HARD, INSTRUCT CUSTOMER TO USE
DISHWASHER CLEANER PER PACKAGING INSTRUCTIONS. ALSO
RECOMMEND THE 1 HR WASH CYCLE.
FOR MODELS WITH WATER SOFTENER: CHECK FOR "ADD
SALT" LED AT END OF CYCLE. IF ON, ADD SALT AND INSTRUCT
CUSTOMER.
FOR MODELS WITH WATER SOFTENER: REGEN VALVE ELECTRICAL
PROBLEM; REFER TO SERVICE ERROR CODES TABLE.
CHECK WATER HARDNESS. IF BELOW 10 GRAINS, THEN INSTRUCT
CUSTOMER TO USE LESS DETERGENT AND RECOMMEND THE "1
HR WASH" CYCLE.
CHECK WATER HARDNESS. IF BELOW 10 GRAINS, THEN INSTRUCT
CUSTOMER TO USE LESS DETERGENT AND RECOMMEND THE "1
HR WASH" CYCLE.
REFER TO SERVICE ERROR CODES TABLE.
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 AND ATTACH TO
UNDERSIDE OF COUNTERTOP IF POSSIBLE.
RELATED
ERROR
CODES
9-4
4-3
6-3
3-2
3-3
9-1
9-2
7-1
6-8
10-1
6-8
6-3
9-1, 9-2