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Troubleshooting
This troubleshooting guide is for general aid only.
See the label on the inside of the toilet lid for service parts. Refer to the illustration on the
last page for parts identification.
Symptoms
Poor flush.
No flush.
Fill valve turns
on / off by itself
without toilet
being flushed,
or runs allowing
water to enter
tank.
Long tank fill
cycle.
Noisy tank fill
cycle.
Trip arm
strikes tank lid
underside.
1138403-X2-A
Corrective action
A. Adjust tank water level to match waterline.
B. Fully open water supply shut-off valve.
C. Clear obstruction in trapway, jet, or bowl rim holes.
D. Clear obstruction in soil pipe or vent pipe.
A. Reconnect flush ball chain to trip lever or flush valve.
B. Adjust chain assembly to remove excessive slack.
A. Adjust the chain for proper slack so flush ball isn't held off
flush valve seat.
B. Clean or replace the seal if it is worn, dirty, or misaligned
with the flush valve seat or flush valve seat is damaged.
Replace flush valve seal or flush valve.
C. Remove tank and tighten flush valve nut if flush valve
gasket is leaking. Do not overtighten. If leakage continues,
replace gasket.
D. Clean fill valve seat / seat washer of debris, or replace piston/
seat washer assembly.
E. Replace fill valve if valve float sinks.
F. Adjust tank water level if too high.
A. Fully open water supply shut-off valve.
B. Clean the valve inlet, valve head, or supply line. Flush the
lines.
A. Partially close water supply shut-off valve if water pressure
to toilet is too high. Check toilet performance following any
such adjustment.
B. Remove dirt or obstruction from the valve head. Flush the
lines.
A. Adjust flush ball chain assembly to remove excessive slack.
B. Adjust trip arm bracket and flange so they are parallel with
tank top.
12
Kohler Co.
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