Kohler K-3393 manual Power interruptions or extreme low voltage

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 A. Remove dirt or obstructions from the valve head.

cycle. Fill	Flush the lines.
valve does
not refill
the tank.
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 A. Clean the fill valve seat/seat washer. If no debris

valve turns	is found, replace the piston/seat washer assembly.
on and off
by itself
without the
toilet being
flushed.

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 A. Replace the fill valve if the valve float sinks. valve runs

continuously.

1057478-5-C 20 Kohler Co.