75
VIII.
VIII.
Troubleshooting
Troubleshooting
Circulation Pump
Circulation Pump
–
–
Replacing Impellers (1)
Replacing Impellers (1)
Occasionally, a circulation pump impeller can stick if a dishwasher hasn’t been used for a
long time. Impeller ceramic rings and carbon rings had been changed (during January,
2001) to reduce or eliminate impeller sticking (ceramic rings are located around shaft on
rear of impeller).
For temporary repairs when impeller replacement isn’t possible, impellers can be loosened
by rotating them (through the sump) using an
8mm
nut driver (impellers should be replaced
shortly thereafter when repairs are possible).
NOTE:
Upgraded spacers and ceramic
rings (January, 2001 and later) provide
lower friction and less contact area,
preventing impeller sticking when
dishwashers haven’t been used for long
periods of time.
HINTS:
Upgraded impellers (with upgraded
ceramic rings) and carbon rings fit
both old 263835 and new 266511
(softer bearing) circulation pump
motors (and corresponding pump
housings).
Check color of impeller ceramic
rings as shown below to determine
upgraded (January, 2001 & later) and
old (December, 2000 & before) style
rings.
Make sure black spacer is reinstalled
-- failure to reinstall spacer can
cause motor to bind.
INSTRUCTIONS FOR LOOSENING
IMPELLER:
To loosen stuck impeller, access sump by
removing microfilter and sump screen.
Insert an
8mm
nutdriver through sump
hole to impeller -- place nutdriver onto
8mm stud on impeller and carefully rotate
impeller clockwise until it becomes free
(at least two full revolutions).
Sump
8 mm nutdriver
Impeller
Access port to
impeller through
sump
HINT:
Impeller ceramic ring color code:
Bright white --
upgraded ring
Pink --
upgraded ring
Dull yellow/cream --
old ring (impeller
should be replaced)
Dull white (off white) --
old ring (impeller
should be replaced)
UPGRADED
OLD STYLE
NOTE:
Impellers should be replaced
(instead of loosened) whenever
possible. Loosening impellers should
be done only on a temporary basis.
Содержание SHI 4302
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