Fluidmaster 400H PerforMAX FILL VALVE Installation Guide

June 15, 2024
FLUIDMASTER

Fluidmaster 400H PerforMAX FILL VALVE

GETTING STARTED

PARTS OVERVIEW

Parts Overview

TOOLS NEEDED

  • Bucket

  • Sponge

  • Towel

  • Scissors
    (Optional)

TOP DOWN VIEW

Top Down View

STEP 1: PREPARE TANK

A: TURN OFF WATER
Prepare Tank

B: DRAIN WATER
Flush toilet to drain most of the water from the tank.
Prepare Tank

C: USE SPONGE OR TOWEL TO SOAK UP EXCESS WATER IN TANK
Sponge

Towel

Prepare Tank

STEP 2: REMOVE OLD FILL VALVE

A: REMOVE CONNECTOR
Remove water supply connector from bottom of fill valve by twisting connector nut to the left.

Towel
(Optional)

NOTE: Inspect water supply connector.
Replace it if it is worn, or you don’t know how old it is, to prevent flooding and property damage.

B: REMOVE OLD LOCKNUT
Below tank, twist locknut to the left to remove from fill valve.

C: REMOVE OLD FILL VALVE
Including refill tube, refill clip and shank washer. Drain any excess water into bucket by removing fill valve from tank. (Pull fill valve up)
Remove Old Fill Valve

Bucket
(Optional)

STEP 3: ADJUST HEIGHT OF NEW FILL VALVE

A: TWIST FILL VALVE TO ADJUST HEIGHT
Top of fill valve cap should measure roughly 3″ above top of overflow pipe when installed.

NOTE:
Increasing height allows more water to fill in the tank.

Adjust Height Of New Fill Valve

Adjust Height Of New Fill Valve

STEP 4: INSTALL NEW FILL VALVE

A: ATTACH REFILL CLIP TO OTHER END OF REFILL TUBE

**B: IF UNATTACHED, PUSH REFILL TUBE ONTO REFILL PORT

**

C: INSERT FILL VALVE
Position refill tube to face flush valve making sure fill valve parts do not interfere with lever arm.

Install New Fill Valve

D: ATTACH REFILL CLIP TO OVERFLOW PIPE
Note: If refill tube is too long to fit inside tank with lid closed, remove refill tube from fill valve refill port, cut tube, and reattach to port.

Scissors
(Optional)

E: INSTALL LOCKNUT
Screw locknut to the right onto fill valve shank (below tank).

*Hand-tighten only.
DO NOT OVERTIGHTEN

  • Overtightening may crack the fill valve or tank causing flooding. Make sure the float cup does not touch the tank walls or tank lever and flush valve.

STEP 5: FINISHING STEPS

A: ATTACH WATER SUPPLY CONNECTOR TO FILL VALVE
Twist to the right to tighten.

*Hand-tighten only.
DO NOT OVERTIGHTEN.

B: TURN ON WATER Check for leaks.
(Go to www.Fluidmaster.com/support for leak solutions.)

C: WATER LEVEL
After the tank stops filling, water level should fill the tank to roughly ½ inch below top of overflow pipe to ensure a proper flush. (Does not need to be exact.)
Finishing Steps

  • Overtightening may damage fill valve or coupling nut, potentially causing flooding. Make sure the float cup does not touch the tank walls or tank lever and flush valve.
    ** The top of the overflow pipe must be a minimum of 1″ below tank lever hole.

STEP 6: FINE-TUNE TANK WATER LEVEL

A: FLUSH THE TOILET TO CHECK THE TANK WATER LEVEL
After the water stops filling the tank, the water level should be roughly ½ inch below the top of overflow pipe to ensure a proper flush.

B: WATER LEVEL IS TOO LOW
Turn the tank water level adjustment screw clockwise to raise the float. Flush to reset water level.

WATER LEVEL IS TOO HIGH
Turn the water level adjustment screw counterclockwise to lower the float. Flush to reset water level.

Fine-tune Tank Water Level

STEP 7: FINE-TUNE BOWL WATER LEVEL

NOTE: The PerforMAX Fill Valve is pre-set to fill the proper bowl water level in most toilets straight out of the box.
Fine-tune Bowl Water Level

A: FILL BOWL WITH A GALLON OF WATER
Wait 1 minute until the bowl water level recedes down and stops.

B: MARK THE WATER LEVEL IN THE BOWL
With a pencil, draw a line at the top of the water level in bowl.
(Pencil mark will easily wash off).

C: FLUSH TOILET TO CHECK BOWL WATER LEVEL
If the water level matches the line you’ve made in the bowl when the fill valve stops filling the tank, the water level is correct, proceed to Step 8.

If the water level matches the line in the bowl and the fill valve is STILL FILLING , then the bowl water is TOO HIGH , proceed to Step 7D.

If the valve shuts off and the water level does NOT match the line in the bowl , the water level is TOO LOW, proceed to Step 7D.

D: ADJUST THE BOWL WATER LEVEL

IF TOO HIGH: Turn the dial towards the closed position.

IF TOO LOW : Turn the dial towards the open position.

E: FLUSH TOILET, CHECK BOWL WATER LEVEL
Repeat Steps 7D and 7E until water level in bowl matches the line when the fill valve shuts off.

STEP 8: FLUSH THE TOILET

A: FLUSH THE TOILET
If you’re satisfied with the flush, YOU’RE DONE!
Flush The Toilet

YOU DID IT!

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Fluidmaster

Still not working exactly right?
See the next page for Troubleshooting.

TROUBLESHOOTING

IF THE FILL VALVE:

  • DOES NOT TURN ON
  • WON’T TURN OFF
  • WON’T REFILL TANK

REMOVE CAP AND CHECK FOR DEBRIS

A: Turn off water supply.
B: Flush toilet.
C: With right hand push float up, grip and hold shaft under float.

D: With left hand twist cap and lever arm counterclockwise to unlock cap. Let cap hang on float cup.

E: Hold empty cup upside down over uncapped valve to prevent splashing.
F: Turn water supply on and off a few times.
G: Turn water supply off.
H: Replace valve cap.

Replace Fill Valve Seal

  • Place cap assembly on top of gray valve body by aligning cap arm and adjustment rod next to refill tube.
  • Press down on top cap while rotating top & arm clockwise to locked position.

SymbolSee Our Troubleshooting
HOW-TO VIDEO
http://bit.ly/2yAdZn7

REPLACE FILL VALVE SEAL

A: Remove cap (see page 12).
B: Replace seal with a *genuine Fluidmaster 242 Seal.
C: Replace valve cap.

  • Place cap assembly on top of gray valve body by aligning cap arm and adjustment rod next to refill tube.
  • Press down on top cap while rotating top & arm clockwise to locked position.

Always use genuine Fluidmaster parts when installing or repairing. Fluidmaster will not be responsible or liable for use of non-Fluidmaster parts during installation or repair.

WATER LEVEL IN BOWL IS TOO LOW

A: WATER FROM REFILL TUBE MUST FLOW THROUGH OVERFLOW PIPE
Make sure the refill tube is supplying water down overflow pipe. (Metal side out for refill clip)

B: WATER LEVEL IN TANK MAY BE TOO LOW
1/2” below top of overflow pipe is recommended (see page 8).

C: FLAPPER MAY BE CLOSING TOO SOON
Give flapper chain approximately 1/2″ of slack.

FOR CANISTER FLUSH VALVES

For Canister Flush Valves

The Fluidmaster refill clip is not required for installation.

If you’ve already installed the refill clip onto the refill tube, simply pull it or cut it off.

FOR MANSFIELD®
Push refill tube into refill hole at the top of the flush valve cap.

FOR KOHLER AQUAPISTON
Push refill tube onto yellow nipple on flush valve.

FOR AMERICAN STANDARD CHAMPION 3
Push refill tube onto refill clip, then attach refill clip to flush valve overflow pipe. Reuse original refill clip. Do not use Fluidmaster® refill clip.

WARNING

DO NOT USE IN-TANK DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR CHLORINE. Use of such products will: (1) RESULT IN DAMAGE to tank components and MAY CAUSE FLOODING and PROPERTY DAMAGE and (2) VOID FLUIDMASTER WARRANTY.
Fluidmaster Flush ‘n Sparkle Toilet Bowl Cleaning System is recommended for those choosing to use in-tank bowl cleaners and WILL NOT VOID the FLUIDMASTER WARRANTY because it will not damage the components. DO NOT overtighten nuts or tank/bowl may crack. Always use quality Fluidmaster parts when installing or repairing. Fluidmaster will not be responsi- ble or liable for use of non- Fluidmaster parts during installation or repair.

LIMITED SEVEN-YEAR EXPRESS WARRANTY

Subject to the “Exclusions” set forth below, Fluidmaster Inc. promises to the consumer to repair, or at the option of Fluidmaster Inc. to replace any part of this plumbing product which proves to be defective in workmanship or materials under normal use for seven years from the date of purchase. All costs of removal, transportation and reinstallation to obtain warranty service shall be paid by the consumer. During this “Limited Seven Year Express Warranty,” Fluidmaster Inc. will provide, subject to the “Exclusions” section set forth below, all replacement parts free of charge, necessary to correct such defects. This “Limited Seven Year Warranty” is null and void if this plumbing product has not been installed and maintained in accordance with all written instructions accompanying the product, and if non-Fluidmaster Inc. parts are used in installation.
EXCLUSIONS: FLUIDMASTER INC. SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING COSTS OF INSTALLATION, WATER DAMAGE, PERSONAL INJURY OR FOR ANY DAMAGES RESULTING FROM ABUSE OR MISUSE OF THE PRODUCT, FROM OVERTIGHTENING OR FROM FAILURE TO INSTALL OR MAINTAIN THIS PLUMBING PRODUCT IN ACCORDANCE WITH THE WRITTEN INSTRUCTIONS, INCLUDING USE OF NON-FLUIDMASTER PARTS. DO NOT USE IN-TANK DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR CHLORINE. USE OF SUCH PRODUCTS WILL RESULT IN DAMAGE TO TANK COMPONENTS AND MAY CAUSE FLOODING AND PROPERTY DAMAGE. USE OF SUCH PRODUCTS WILL VOID THIS WARRANTY.

Customer Support


ADDITIONAL QUESTIONS?

For installation assistance, contact our technical services department.
EMAIL, CHAT or CALL our toll-free number.
www.fluidmaster.com/support
1-800-631-2011
Hours Available:
Monday – Friday
5:30 AM – 5:00 PM PST

30800 Rancho Viejo Road, San Juan Capistrano, CA 92675
www.Fluidmaster.com800-631-2011
Contact Fluidmaster for troubleshooting help or visit www.Fluidmaster.com
M-F 5:30 am – 5:00 pm PST.

HOW-TO VIDEO
VISIT: FLUIDMASTER.COM
400H PRODUCT PAGE

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References

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