Kohler K-3393 manual Adjust the tank water level if it is too high

Troubleshooting Guide (cont.)
Symptoms	Recommended Action
	B.	Adjust the tank water level if it is too high.
	C.	Clean the valve inlet, valve head, or supply line.
		Flush the lines.
	D. An excessively high water supply pressure may
		force the water through the fill valve. If required,
		reduce external water pressure.
	E.	Foreign particles may be lodged under the float
		valve seal. Clear particles from valve seat.
	F.	The float valve seal may be cracked or split.
		Replace valve assembly.
5. The fill	A.	Partially close the water supply shut-off valve if
cycle is		the water pressure to the toilet is too high. Check
noisy.		the toilet performance following any such
		adjustment.
	B.	Remove dirt or obstructions from the valve head.
		Flush the lines.
6. Pump	A.	The water line height may be incorrectly set. Set
draws air		the correct water line height. Adjust the screw
during		clockwise in order to raise the elevation of the
flush.		float and the full water line.
7. No flush.	A.	The pump is not plugged in or the electrical
The pump		power is not on. Plug the three-prong plug from
does not		the pump into Class A GFCI, or turn on power to
operate.		toilet.
	B.	The pump has locked out through its internal
		thermal overload switch. Wait two minutes and
		retry.
	C.	The trip button is not plugged in. Plug modular
		plug of the trip button wire into jack in trip
		button housing.
	D. The trip button has failed. Replace the flush
		button.
	E.	The pump has failed. Replace the pump.
8. Circuit	A.	Check that the circuit breaker is properly sized
breaker		and has no other electrical loads.
trips
frequently.
	B.	If the circuit breaker trips while the pump is
		disconnected, have an electrician correct the fault
		in the wiring to the toilet.
Kohler Co.		21	1057478-5-C