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9

N.  INSTALLATION TROUBLESHOOTING

Problem:  Leak at the drain saddle.

Possible Cause:

  Drain saddle not clamped tightly enough.

Solution:

  Tighten the drain saddle screws evenly and firmly.

Problem:  Leak at the fittings threaded connection.

Possible Cause:

  Fitting is improperly taped or not tightened sufficiently.

Solution:

  Retape the threaded portion with PTFE tape and thread it in 

firmly.  Do not over tighten.

Problem:  Leak at the fittings push-in connection.

Possible Cause:

  Tubing is damaged if there is a tubing misassembly.

Solution:

  Remove the tubing.  Squarely cut off 1/4 inch from the end 

of the tubing using a sharp razor knife and reinsert it into the fitting.  

Make sure that the tubing is pushed in completely until it seats. Refer to 

“Using Push-In Fittings” Section on page 7.

Problem:  Leak at the replacement filter head.

Possible Cause: 

 Damaged or misaligned O-ring.

Solution: 

 Close the cold water feed valve and the storage tank valve.  

Lift up on the faucet handle and drain the system a minimum of five (5) 

minutes.  Remove the replacement filter where leak is found.  Ensure 

both o-rings are present on the replacement filter and are seated into 

grooves; moisten o-rings with water.  DO NOT use any petroleum 

products to lubricate the o-rings. 

Problem:  The faucet leaks from the spout with the handle down.

Possible Cause:

 An obstructed or damaged valve seat in the faucet 

mechanism.

Solution:

  Call Customer Care team at 855-3M-WATER (855-369-2837) 

for assistance in attempt to repair.

Problem:  No steady drip from the open faucet after the tank is drained.

Possible Causes:

• 

The cold water feed valve is not open.

• 

A leak from any product water fitting connection.

• 

Air is still trapped in the system.

Solutions:

• 

Open the cold water feed valve completely.

• 

Correct the fitting leak as outlined above.

• 

Wait for the air to be purged from the system.

Problem:  Water leaks from air gap module opening.

Possible Causes:

• 

The drain line is blocked or the drain hole is not drilled through 

 completely.

• 

The drain line has a loop in it.

• 

Air is locked in the air gap outlet.

• 

There is excessive RO reject flow.

Solutions:

• 

Check to see that the drain line is clear of any obstruction and 

 

remove the drain saddle fitting to verify that the hole is drilled 

 

through completely.

• 

Shorten tubing so that it is as vertical as possible.

• 

Blow air into the air gap outlet using a short length of tubing.

• 

Disconnect the red SFC reject tubing from the faucet air gap inlet 

 

tubing and check the reject flow rate.  It should be less than 5.9 

 

ounces/min.  If it is greater than 5.9 ounces/min., replace the red SFC  

 

reject tubing with the new one of proper length.

Problem:  Too little or no reject flow.

Possible Causes:

• 

Red SFC reject tubing is plugged or damaged.

• 

The cold water feed valve is not open.

Solutions:

• 

Replace the SFC reject tubing with one of proper length.

• 

Open the cold water feed valve completely.

Problem:  Chlorine or other unpleasant taste/odor is evident after the 

initial tank filling.

Possible Cause:

 Residual sanitizer is still in the water.

Solution:

 Drain and fill the storage tank several times if necessary.

Problem:  Noise in the drain (gurgling or dribbling sound).

Possible Cause:

  The reject water is dripping into the standing water in the 

drain trap.

Solutions:

• 

Make sure that the 3/8” black drain tubing from the faucet air gap 

 

module slopes continuously downward to the drain saddle without 

 

any loops or low spots.

• 

Angle the drain piping so that the reject water runs down the side 

 

of the drain pipe.

• 

Change the location of the drain saddle to the horizontal drain  

 

pipe or any alternate vertical drain pipe which is farther from the  

 

trap.  Properly plug the original hole.  

Caution:

  Make sure the drain  

 

saddle is always installed above (before) the trap.

• 

Drill larger hole in drain pipe.

Problem:  Little or no water available.

Possible Cause:

  

• 

Tank has not had time to fill.

• 

Tank has little or no air charge.

• 

RO membrane module output significantly below normal.

Solutions:

• 

Wait.  The tank will take approximately 4 hours to fill.

• 

An empty tank with the ball valve open to atmosphere, should have 

a 7-8 psi air charge.

• 

Contact our Customer Care Team at 855-3M-WATER (855-369-

2837) for instructions.

Summary of Contents for 3MRO401

Page 1: ...dration Hot and cold beverages Cooking and food preparation Pet hydration Aquatic aquariums Optimized For Reduction Of Select Volatile Organic Compounds VOCs System tested and certified by NSF Interna...

Page 2: ...to small parts during the installation of this product To reduce the risk associated with ingestion of contaminants Do not use with water that is microbiologically unsafe or of unknown quality without...

Page 3: ...system Where a booster pump is installed on a water system you must install an appropriate pressure relief valve Pres sure relief valve must be maintained and inspected every 6 months Contact a plumbi...

Page 4: ...ing location 5 D Make the faucet mounting hole 5 E Mount the faucet 6 F Prepare the system for installation 6 G Install the feed water connection and tubing 7 H Prefill and sanitize the storage tank 7...

Page 5: ...nothing will interfere with mounting the faucet such as reinforcing ribs support brackets or the cabinet construction If drilling a hole in your sink is required the professional installer should foll...

Page 6: ...Gap is provided by hole 1 above faucet base 1 Familiarize yourself with all of the components shown in the air gap faucet diagram See Fig 2 2 Slide the chrome base plate and rubber washer up the thre...

Page 7: ...y and the tank valve Disconnect the orange and yellow tube from the union connector setting the tank aside while proceeding with the rest of the installation the sanitizing solution should be kept in...

Page 8: ...ween the sink basins for ease of access if space permits K MAKE THE TUBING CONNECTIONS With all of the components in place the tubing connections can be made When routing the tubing between the compon...

Page 9: ...The drain line has a loop in it Air is locked in the air gap outlet There is excessive RO reject flow Solutions Check to see that the drain line is clear of any obstruction and remove the drain saddle...

Page 10: ...ed valve Wait five 5 minutes for the filtration assembly to completely depressurize 2 Remove cover 3 Twist the existing filter 1 4 turn to the left so that the ears on the filter are able to disengage...

Page 11: ...ly and are not designed to sanitize systems that have become highly contaminated from misuse When to Sanitize the Storage Tank Upon start up as described in the beginning of this manual After any serv...

Page 12: ...tion Inc will replace the Product or refund your Product purchase price This warranty does not cover labor The remedy stated in this paragraph is Customer s sole remedy and 3M Purification Inc s exclu...

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