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Troubleshooting Guide (cont.)
Symptoms Recommended Action
F. Power interruptions or extreme low voltage
conditions can prevent pump operations. Check
that the proper electrical power is applied to the
pump.
G. If the problem persists, replace the pump.
2. Long fill
cycle. Fill
valve does
not refill
the tank.
A. Remove dirt or obstructions from the valve head.
Flush the lines.
B. The valve inlet or supply line may be plugged.
Clear particles from valve seat.
C. The supply stop may be closed. Fully open the
supply stop valve.
D. The fill valve may be clogged. Unclog the fill
valve. If the fill valve was clogged, install a filter
in the supply line to prevent recurring problems.
E. The float valve seal may be cracked or split.
Replace the valve assembly.
3. The fill
valve turns
on and off
by itself
without the
toilet being
flushed.
A. Clean the fill valve seat/seat washer. If no debris
is found, replace the piston/seat washer assembly.
B. Replace the fill valve if the valve float sinks.
C. The float operates the fill valve at too high a level.
Adjust the tank water level if it is too high.
D. Clean the valve inlet, valve head, or supply line.
Flush the lines.
E. Either pump discharge hose may be loose
allowing water to drain from the tank into the
toilet. Ensure that both hoses are properly
connected. Contact a Kohler Service
Representative if necessary.
F. The water line height may be incorrectly set. Set
the correct water line height.
G. Water may be leaking past the jet hose spud
gasket into bowl. Replace spud unit (see
installer/dealer for instructions).
4. The fill
valve runs
continuously.
A. Replace the fill valve if the valve float sinks.
1057478-5-C 20 Kohler Co.