-7-
SYMPTOMS
CORRECTIVE ACTION
1. Poor Flush
A. Adjust the tank water level to match the waterline.
B. Fully open the water supply shut-off valve.
C. Clear obstructions from the trapway, jet, or bowl rim holes.
D. Clear obstructions from the waste line.
A. Clear the debris around the float assembly of fill valve and check if the float can float
up. If it still fills in after manually lifting the lever up, please shut off the valve on the
wall and replace fill valve.
B. Clean or replace the seal if it is worn, dirty, or misaligned with the flush valve seat, or
if the flush valve seat is damaged. Replace the flush valve seal or flush valve.
C. Clean the fill valve seat/seat washer of debris, or replace the piston/seat washer
assembly.
D. Remove the tank and tighten the flush valve nut if flush valve gasket is leaking. Do
not overtighten. If leakage continues, replace the gasket.
E. Adjust the tank water level if it is too high.
IMPORTANT:
Use only genuine Kohler parts as shown to avoid property damage.
3. Tank takes excessive time to fill or
doesn't fill.
4. There is excessive noise when the
tank is filling.
2. The fill valve turns on/off by itself
without the toilet being flushed, or it
runs allowing water to enter the tank.
A. Fully open the water supply shut-off valve.
B. Clean the valve inlet, valve head, or supply line. Flush the lines.
A. Partially close the water supply shut-off valve if the water pressure to the toilet is too
high. Check the toilet performance following any such adjustment.
B. Remove dirt or obstructions from the valve head. Flush the lines.
1.
A.
B.
C.
D.
A.
B.
C.
/
D.
E.
3.
4.
2.
/
A.
B.
A.
B.
1416649-T01-A
