SeaLand 4700 Series VacuFlush Operation Manual - Manual (Page 12)

12
SeaLand 4700 Series VacuFlush Toilet Maintenance/winterizing/service
Problem Possible Cause Service Instruction
2 . Water enters toilet bowl, but
toilet does not flush .
a . Green “OK to Flush” light is not
lit on status panel .
b . Electrical failure from flush
switch or flush handle to toilet .
c . Flush switch or handle may be
defective .
d . Loose flush ball motor wires .
e . Defective flush ball motor .
f . Flush ball motor drive arm
failure .
g . Drive linkage failure .
a . Check for loose/defective wires
between vacuum switch (on
vacuum generator) and wire 6 of
toilet circuit board .
b . Check for loose/defective wires
between flush switch or handle
and pins 2 and 4 of toilet circuit
board .
c . Replace if necessary .
d . Check for loose wires between
motor and toilet circuit board
pins 17 and 18 .
e . Replace if necessary .
f . See page 15 for replacement
instructions .
g . See page 15 for replacement
instructions .
3 . Water does not enter toilet bowl,
but toilet flushes .
a . Blocked water supply .
b . Loose/defective wires .
c . Defective water valve .
d . Defective circuit board on toilet .
a . Clear blockage in water line or
filter screen at water valve inlet .
b . Check wires between water
valve and toilet circuit board pins
15 and 16 .
c . Replace water valve .
d . Replace toilet circuit board .
4 . Water does not enter toilet when
pressing “Add Water” switch or
raising flush handle .
a . Electrical failure .
b . Defective flush switch or handle .
c . Defective circuit board on toilet .
a . Check wires between “Add
Water” switch or flush handle and
toilet circuit board pins 1 and 4 .
b . Replace flush switch or handle .
c . Replace toilet circuit board .
5 . Water does not shut off and
toilet bowl overflows .
a . Debris inside water valve or
defective water valve .
b . Defective circuit board on toilet .
a . Replace water valve .
b . Replace toilet circuit board .
6 . Flush ball cycles constantly
between open and closed
position .
a . Cam switch needs adjusted to
align flush ball .
b . Defective cam switch .
c . Defective drive linkage .
d . Defective rotor shaft cam .
a . See page 14 for cam switch
adjustment instructions .
b . Replace cam switch .
c . Replace drive linkage . See page
15 for instructions .
d . Replace rotor shaft cam . See
page 15 for instructions .
7 . Flush ball opens slowly . a . Excessive drag between flush
ball and seal .
b . Defective spring assembly .
a . Clean surface of flush ball and
under edge of seal . Lubricate
with silicone grease or alcohol-
free cooking spray .
b . Replace spring .
8 . Flush ball does not close
completely .
a . Cam switch needs adjustment/
flush ball alignment or
replacement .
b . Rotor shaft cam is loose or
defective .
a . See adjustment/alignment or re-
placement instructions on pages
14-15 .
b . See replacement instructions on
page 15 .