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VIII. Troubleshooting
VIII. Troubleshooting
Basic Dishwasher Troubleshooting
Basic Dishwasher Troubleshooting
Problem
Possible Cause
Suggested Action
9
Inappropriate
dishwasher
detergent used.
9
Instruct customer to use a powdered
dishwasher detergent (e.g.
Cascade
powder).
9
Blocked or clogged upper/ lower
spray arms.
9
Check spray arms – clean or replace as
needed.
9
Water doesn't circulate properly
due to debris in circulation motor
impeller.
9
Twist and remove filter, then remove debris
from right side of sump where water enters
circulation pump impeller.
If debris has
jammed impeller, turn off and pull out
dishwasher, remove tank, remove circulation
motor and unscrew and clean out imp
HINT :
If impeller is damaged, replace entire
impeller assemb ly or it won't seal adequately.
9
Filter not locked down securely,
allowing debris to enter sump.
9
Twist and remove filter, then remove debris
from sump. Instruct customer to twist and
lock filter (cylinder) securely into sump.
CAUTION : Use caution when removing
deb ris from sump to avoid b eing cut b y
sharp deb ris such as aluminum can tab s
or b roken glass.
HINT :
Due to high temperature rinse (161
o
b reaking down food deb ris and triple filtering
system trapping food deb ris, filters shouldn't
normally clog up. Prob lem often caused b y filter
not
b eing
securely
locked
down.
Instruct
customer to twist and l
9
Drain hose behind dishwasher
doesn't have an adequate loop.
9
Loop drain hose behind the dishwasher
(with the top of the loop) at least 20" above the
floor.
9
Partially clogged air gap, allowing
wastewater from prior washes to
circulate in dishwasher.
9
Unclog sink air gap.
NOTE :
Cleaning sink air gaps is not covered
under warranty.
9
Water doesn't drain properly
9
See
Water doesn't drain properly
on
page xx.
9
Soap doesn't enter dishwasher
due to dispenser actuator (
A2
) failure.
9
Turn off dishwasher and test actuator –
replace if faulty.
HINT :
Must pull out dishwasher and
remove left side panel to access float
switch.
HINT :
One "wax" motor operates b oth the
detergent and rinse aid dispensers through a
mechanical linkage. The system always resets
when door closes. Check linkage b y moving it
manually.
Check "wax" motor b y running a
continuity check on its terminals.
9
Too much detergent used.
9
Instruct customer to use less.
9
Improper detergent used (other
than powdered dishwasher detergent).
9
Instruct customer to use a powdered
dishwasher detergent (e.g.
Cascade
powder).
9
Dishwasher
doesn't
drain
properly.
9
See
Water doesn't drain properly
on
page xx.
9
Washability
problems
(dishwasher
won't clean properly)
HINT : Water level will not
affect washab ility as water
fill
is
measured
b y
pressure, not time – water
level cannot b e adjusted.
9
Suds
or
foam
remains in dishwasher.