FLOW MAX® FAUCETS LOW WATER
FLOW TROUBLESHOOTING

CUP Paya

VuIPPERT

Purpose

This document outlines the procedures for correction restricting water flow in Flow Max Faucets.

Safety

The “CAUTION” symbol above is a sign that a safety risk is involved and may cause personal injury
and/or product or property damage if not safely adhered to and within the parameters set forth
in this manual.

Moving parts can pinch, crush, or cut. Keep clear and use caution.

Check Lists

To identify the source of low flow water pressure or faucet leakage, refer to the below checklists.

Low Flow Water Pressure Check List

1. Check for debris inside faucet cartridge, spout aerator (TI-400), nozzle head (TI-400), and water lines.
Make sure there is no debris restricting water flow.

2. Check the campground's water pressure. Safe water pressure in an RV should be 40 - 50 psi. A pressure
regulator keeps your pressure consistent, but it cannot supply the necessary force to boost water
flow. If the water pressure is low, then you may need a booster pump to supply increased water flow
through your RV.

Check the hose line. One bent hose could cause low water pressure. In this case, simply straighten the
hose to solve the pressure problem.

Check the water filter. The water filter could cause low water pressure if it is clogged and needs
replacing. The filter should be changed every six months to a year. Check filters before camping in your
RV to ensure the filter is clean.

Leaking Faucet Check List

If your faucet is leaking at the spout, base or neck it is possible the cartridge is cracked. This will require
a cartridge replacement.

If your faucet has a pin hole leak in the faucet neck, the complete faucet will need replaced.

If the faucet neck is loose, tighten it.

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FLOW MAX® FAUCETS LOW WATER
FLOW TROUBLESHOOTING

CUP Paya

(CN LiPPERT

Resources Required (depending on model, not all resources are needed)

* Pliers

¢ Small slotted screwdriver
» Towel or rag

« 2.5 mm hex wrench

« Adjustable wrench

Procedure

Aerator styles may differ, depending on faucet model.
» Screw-on head (Fig. 1A) see page 2.

* Pull down head (Fig. 2A) see page 3.

* Snap-in head (Fig. 3A) see page 4.

+ Internal (Fig. 4A) see page 5.

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FLOW MAX® FAUCETS LOW WATER
FLOW TROUBLESHOOTING

CUP Paya

(VLCTIPPERT

Screw-On Head

NOTE: The head is screwed on hand tight. With build-up of mineral deposits and debris, pliers may be
needed to remove the faucet head.

1. Remove the head by unscrewing from neck (Fig. 5).

NOTE: If pliers are needed, place a towel over the head to protect from any damage from the jaws of
the pliers.

Remove the aerator from the head.

Separate the aerator and screen.

Rinse aerator and screen under water to clean any debris or build-up.
Reattach and tighten head.

Screen

Aerator

,

NOTE: If there is a leak from the aerator when the faucet is on, it is possible that the aerator may not be
installed correctly. Remove the aerator and reinstall.

Rev: 01.13.26 CCD-0004351

FLOW MAX® FAUCETS LOW WATER
FLOW TROUBLESHOOTING

CUP Paya

CN LiPPERT

Pull-Down Head

1. Pull the nozzle down (Fig. 6) and unscrew from the connector.
NOTE: Be sure to secure the hose from retracting back into neck.

Slide the connector up to access the rubber washer/screen.

Remove the rubber washer/screen from the hose by pulling off by hand.
Rinse washer/screen under water to remove any debris or build-up.
Reattach rubber washer/screen.

Pull the connector down so the rubber washer/screen seats securely inside.
Reattach the nozzle to nozzle connector and tighten.

Nozzle

Connector

Rubber washer/screen

NOTE: If there is a leak from the aerator when the faucet is on, it is possible that the aerator may not be
installed correctly. Remove the aerator and reinstall.

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FLOW MAX® FAUCETS LOW WATER
FLOW TROUBLESHOOTING

CUP Paya

(CN LiPPERT

Snap-In Head

1. Remove the aerator from the neck (Fig. 7A) with a small slotted screwdriver by placing the edge into
the tabs (Fig. 7B) gently prying the aerator from the neck.

2. Separate the aerator and screen (Fig. 7C).

3. Rinse aerator and screen under water to remove any debris or build up.

4. Reinsert aerator and screen by pressing the aerator back into the neck.

NOTE: If there is a leak from the aerator when the faucet is on, it is possible that the aerator may not be
installed correctly. Remove the aerator and reinstall.

Rev: 01.13.26 CCD-0004351

FLOW MAX® FAUCETS LOW WATER
FLOW TROUBLESHOOTING

CUP Paya

(CN LiPPERT

Internal

1. Remove the rubber plug (Fig. 8) allowing access to the set screw.
2. With 2.5 mm hex wrench loosen the set screw (Fig. 9).

__ as

Rubber Plu

3. Remove faucet handle from faucet base allowing access to the cartridge (Fig. 10).
4. Remove the trim ring by unscrewing by hand.

NOTE: Use of tools to remove trim ring should not be necessary and could cause damage to the ring.

5. Remove the cartridge retainer ring with appropriate wrench by gripping the flat spots on the ring.

6. Remove the cartridge valve.

Faucet Handle

Trim Ring —_> >
z< Cartridge Retainer Ring

Cartridge Valve

Faucet Base

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FLOW MAX® FAUCETS LOW WATER
FLOW TROUBLESHOOTING

CU Pea

(CN LiPPERT

7. Locate the aerator that is seated inside the faucet base (Fig. 11).

8. Remove the aerator by gently gripping the edge of the aerator with a pair of needle nose pliers.
9. Carefully rinse aerator under water to remove any debris or build up.

10. Reinsert aerator using the needle nose pliers.

NOTE: When fully inserted, the aerator will not be flush with the faucet base.

Aerator

11. Install the cartridge valve, making sure to completely seat it into the faucet base.

12. Install the cartridge retainer ring and securely tighten with an adjustable wrench.

13. Screw the trim ring into place and hand tighten only.

14. Install the faucet handle and secure with a 2.5 mm hex wrench. Replace the rubber plug.

NOTE: If there is a leak from the faucet base when the faucet is on, it is possible that the cartridge valve
may not be installed correctly. Remove the cartridge valve and reinstall.

Asa supplier of a broad array of highly-engineered components in the recreation and transportation product markets, safety, education and customer satisfaction are
our primary concerns. Should you have any questions, please do not hesitate to contact us at 432-LIPPERT (432-547-7378) or by email at [email protected].
Self-help tips, technical documents, product videos and a training class schedule are available at lippert.com or by downloading the LippertNOW app.

as
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