IMPORTANT! Use only KOHLER Genuine Parts to avoid property damage and achieve optimal performance.
- Refer to Standard Toilet Tank Troubleshooting if you have a standard toilet tank.
- Refer to Sloan Flushmate® Valve Troubleshooting if you have a Sloan Flushmate Valve.
- The components in your tank may look slightly different than those shown in the illustrations. The troubleshooting steps remain the same.
- Follow the Corrective Actions for your particular troubleshooting problem.
The troubleshooting problems in this help topic include:
- Poor Flush
- Water Runs Sporadically
- Long Tank Fill Cycle
- Clean the rim holes under the bowl rim.
- Verify that the water level meets the marked waterline. Adjust the water level in the tank to match the waterline mark.
- Clear any obstructions from the toilet bowl trapway, jet, and/or waste line.
- Verify that the rim-feed hose (if equipped) is attached inside the overflow.
- Clear any obstructions from the waste line.
- Verify that the frame around the flush button is securely in place. If it is loose, the buttons may not fully actuate the flush. Reinstall the frame if it is loose.
- Adjust the U-clips to reduce any system slack. Verify that the lift rods engage with the flush assembly.
- Use a plunger and auger to clear blockage from the trap and waste line.
Water Runs Sporadically
- Verify that the water level is not set above the water line.
- Adjust the U-clips to minimize slack while the canister remains closed. A clearance of 1/8” (3 mm) is sufficient.
Long Tank Fill Cycle
- Fully open the water supply shut-off valve.
- Verify that the flapper or canister are properly seating after the flush. A loose chain or other object may be interfering with the refill.
- Clean the fill valve inlet or the fill valve seat/seat washer.
- Verify that the water supply hose is free of debris.
- Remove and clean the in-line filter located in the filter housing.
1394738-10-A ©Kohler Co.