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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:

  Re tape 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 

and unplug the booster pump transformer.  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.  Open the cold water feed valve and the storage tank valve and 

plug in the booster pump transformer. Re-check for leak.

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:

  

• 

Booster  pump  transformer  is  not  plugged  into  a  non-switched 

110V, 60Hz power source.

• 

Tank has not had time to fill.

• 

Tank has little or no air charge.

• 

Pro 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 3MRO501

Page 1: ... against NSF ANSI Standard 42 53 and 58 for the reduction of claims specified on the Performance Data Sheet Optimized For Reduction Of Nitrates Select Volatile Organic Compounds VOCs 1 Compared to the 3MRO401 reverse osmosis system which produces up to 18 95 gpd See Performance Data Sheet for additional details APPLICATION Superior Reverse Osmosis Drinking Water1 Drinking and hydration Hot and col...

Page 2: ...s 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 adequate disinfection before or after the system Systems certified for cyst reduction may be used on disinfected water that may contain filter able cysts EPA Establishment 070595 CT 001 To reduce t...

Page 3: ...ystem 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 plumbing professional if you are uncertain how select install maintain a pressure relief valve Do not use a torch or other high temperature sources near filter system cartridges plastic fittings or plastic p...

Page 4: ...faucet mounting 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 I Install the drain connection 7 J Install the filtration assembly and storage tank 8 K Make the tube connections 8 L Start up the system 8 M Flush the system and check the operation 8 N ...

Page 5: ...fore drilling the hole always check underneath the sink to ensure that 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 follow the instructions below D MAKE THE FAUCET MOUNTING HOLE Drilling 7 8 diameter hole through countertop or stainless steel sink 1...

Page 6: ...r 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 threaded base of faucet 3 Connect the 1 4 green tubing supplied in the installation kit to the smaller barb on the air gap faucet Push it on firmly until it seats 4 From above the sink counter top feed t...

Page 7: ... valve 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 the tank for at least 15 minutes Refer to the Using Push In Fittings section NOTE If you encounter difficulty in removing the tubing from the 3 8 x 1 4 union connector make sure the tank valve is...

Page 8: ...k 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 components several guidelines should be observed Tubing runs should generally follow the contour of the cabinet rather than interfere with the cabinet storage area Strive for a neat and orderly tubing flow by using fas...

Page 9: ...le 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 ...

Page 10: ...ig 6 8 Open the cold water feed valve plug in the booster pump transformer and carefully check for leaks 9 Pro RO System Flush Instructions Sediment Granulated Carbon Replacement Filters Close tank Lift the faucet handle and flush at least two 2 gallons of water through system approximately 10 minutes Carbon Block Post Filter Open tank Lift the faucet handle and flush at least two 2 gallons of wat...

Page 11: ...on scented Eye dropper or plastic oral syringe 1 Close the cold water feed valve and open the faucet handle to empty the water in the storage tank It should feel light when empty 2 Disconnect the 3 8 yellow tubing system tank from the ball valve on top of the storage tank 3 Insert into the yellow tubing 1 2 teaspoon 3 ml of household bleach 5 25 See Fig 7 4 Reconnect the yellow tube to the tank ba...

Page 12: ...warranty period 3M 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 s exclusive obligation This warranty gives you specific legal rights and you may have other rights which may vary from state to state or country to country For any warranty questions please call 855 3M WATER 855 36...

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