Fluidmaster 400A - User Manual

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INSTALL WITH CONFIDENCE
QUICK Install Guide
400A FILL VALVE

Fluidmaster 400A Specifications

General

Model	400A
Type	Toilet Fill Valve
Material	Plastic
Adjustable Height	Yes
Universal Fit	Yes
Warranty	5 year

Summary

GETTING STARTED

PARTS OVERVIEW

Identify and understand all parts included with the Fluidmaster 400A fill valve for installation.

STEP 1: PREPARE TANK

STEP 2: REMOVE OLD FILL VALVE

STEP 3: ADJUST HEIGHT OF NEW FILL VALVE

TWIST FILL VALVE TO ADJUST HEIGHT

Guidance on setting the correct height for the new fill valve relative to the overflow pipe.

STEP 4: INSTALL NEW FILL VALVE

STEP 5: FINISHING STEPS

SET WATER LEVEL

How to ensure the water level is set correctly in the tank for optimal flush.

STEP 6: FINE-TUNE TANK WATER LEVEL

CHECK TANK WATER LEVEL

Procedure to verify the water level in the tank after a flush for correct operation.

ADJUST WATER LEVEL

Instructions for adjusting the fill valve float to correct low or high water levels.

TROUBLESHOOTING

FILL VALVE NOT OPERATING

Solutions for fill valve issues like not turning on, off, or refilling the tank.

CHECK FOR DEBRIS

Guide to inspect and clean the fill valve for obstructions that may cause malfunction.

FLOAT NOT DROPPING

Troubleshooting steps when the float fails to drop after a toilet flush.

FILL VALVE CYCLING ON;OFF

Diagnosing and fixing a fill valve that turns on and off intermittently by itself.

LEAKING SUPPLY CONNECTOR

TROUBLESHOOTING (CONTINUED)

LOW WATER LEVEL IN BOWL