Whirlpool M-17 Technical Manual page 34

DIAGNOSTICS AND TROUBLESHOOTING (Cont.)
CUSTOMER DESCRIPTION
Poor wash
2-14 Whirlpool and KitchenAid
n
®
For Service Technician Use Only
Troubleshooting Guide (Continued)
POTENTIAL CAUSES
Filters not cleaned or have been
reinstalled improperly.
Little or no wash pump flow
Spray arms not rotating or plugged
Poor wash due to draining, dispensing
and/or temperature problems.
Soil sensor is choosing low soil cycle
when high soil is present.
Diverter problem
Filtration and Maytag
®
CHECK
1. Inspect filters and instruct customer
on how to remove, clean, and reinstall
them.
2. Ensure that filters are fully seated and
micro filter cup is tight in sump.
Diverter problem. Refer to
Codes" table.
1. Filter may be plugged with food soil
or hard water. Place mugs or glasses
upright in the middle and lower dish
racks.
2. Run a Normal cycle for 10-15 minutes.
Open the door and inspect mugs.
˗ If water is accumulating in them,
pump is working.
˗ If no water is present, water is not
being pumped through the spray
arms.
3. Inspect pump, filters, and spray arms.
If filter is plugged or damaged, unplug
dishwasher or disconnect power and
replace pump/ filter assembly. Clean or
replace clogged components. Ensure
that filters are fully seated in sump.
4. If hard water is present, instruct
customer on proper maintenance.
1. Check arm rotation. If arms are 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, damage to pump filter, or
improper assembly of filters in sump.
Inspect water delivery system and
clean as needed. Inspect filters, clean,
reinstall, or replace.
Refer to "Will not drain", "Detergent not
dispensing" or "Long cycles" sections
above. Refer to "Service Error
table.
1. Check lens surface. Clean if needed.
2. If sensor cannot be cleaned or has
visible damage, unplug dishwasher or
disconnect power.
3. Replace OWI and run diagnostics
cycle after installing new OWI to force
calibration on next customer wash
cycle.
Refer to "Service Error
24" Microfiltration Dishwashers
®
RELATED
ERROR
CODES
"Service Error F10E4 (FAE4)
F3E1
F9E1
Codes" F10E1 (FAE1)
Codes" table.