Frequently Asked Questions

Water Temperature

How can I make sure my shower is safe?

To make sure your shower is safe, follow these tips:

  1. Install a pressure balance tub and shower valve, such as those found in the broad selection of the Delta® Monitor® series.
  2. Set the valve's adjustable rotational limit stop to prevent the temperature handle from being turned to dangerously hot levels. For information on how to set the Adjustable Rotational Limit Stop, watch this how-to video.
  3. Carefully test the tub/shower water with your hand before bathing.

How do I set the adjustable rotational limit stop?

Watch this how to video or follow these steps:

  1. Let the water run until both hot and cold water is fully mixed.

  2. Rotate the handle fully counterclockwise to the hottest position.

  3. Place a thermometer in a plastic tumbler, and hold the tumbler in the water stream.

    cup temp set stop

  4. If the water temperature is above what is allowed by your local plumbing code (110º F or 120º F), remove the handle on 1300/1400 series or temperature knob on 1700/1800 series, and rotate the rotational limit stop:

    1. Counterclockwise if you have a Monitor® 1300 or 1400 series model (handle controls the temperature only, not the volume). For every tooth the rotational limit stop is rotated counterclockwise, the maximum water temperature will decrease approximately 6º F. NOTE: If water temperature is too cool, rotate the limit stop clockwise.


      counterclockwise temp set stop

       

    2. Clockwise if you have a Monitor 1700 or 1800 series model (handle controls volume; temperature knob controls temperature). For every tooth the rotational limit stop is rotated clockwise, the water temperature will decrease approximately 2º F. NOTE: If water temperature is too cool, rotate the limit stop counterclockwise.

    clockwise stop temp set

  5. For 1300/1400 series: Replace the handle. After verifying the water outlet temperature, secure the handle with the screw. Do not over tighten. For 1700/1800 series: After verifying water outlet temperature, snap temperature knob into place.

  6. MAKE SURE COLD WATER FLOWS FROM THE VALVE FIRST. MAKE SURE WATER (AT THE HOTTEST FLOW) DOES NOT EXCEED THE TEMPERATURE ALLOWED (see steps 1-4 above).

Note: Consumer safety is our number one concern. If you do not have experience with plumbing repairs, we recommend that you contact a licensed plumber for tub/shower repairs.

The water in the shower is either hot or cold; I can't get any temperature in-between. What's wrong?

 

The spool and sleeve, the part of the Monitor pressure balance valve that blends the hot and cold water, may not be working properly. This is often caused by mineral deposits that build up over time. To solve, follow the steps below based on your model.


Tools you may need:


temp set stop hot cold tools

 

  1. Shut off water supply.


    temp hot cold set stop

     

  2. There are two types of valves. Choose a or b below depending on your series

    1. 1300/1400 Series: Remove handle.

    2. 1700/1800 Series: Remove temperature knob, cover and handle.

  3. Twist and pull sleeve to remove it.

  4. Unscrew brass bonnet nut.

  5. Remove cartridge.

  6. Soak cartridge in a 50/50 vinegar and water solution for 24 hours to remove any mineral deposits.

 

NOTE: Unless both hot and cold water supplies are turned on, the pressure balance valve will allow only a dribble of water to flow through the valve.

What is the adjustable rotational limit stop?

The adjustable rotational limit stop found on Delta® Monitor® valves, allows you to set a maximum hot water temperature that flows out of the tub/shower. When set correctly, this safety feature ensures that the handle in your tub/shower faucet never goes beyond the set level, resulting in a safe bathing temperature.

It may need to be readjusted if the inlet water temperatures change. For example, during the winter, the cold water temperature is colder than it is during the summer, which could result in varying outlet temperatures. Typical temperatures for a comfortable bath or shower range from 90º F to 110º F.

How do I set the adjustable limit stop? Watch this how to video or follow these steps:

Follow these steps:

  1. Let the water run until both hot and cold water is fully mixed.

  2. Rotate the handle fully counterclockwise to the hottest position.

  3. Place a thermometer in a plastic tumbler, and hold the tumbler in the water stream.

    cup temp set stop

  4. If the water temperature is above what is allowed by your local plumbing code (110º F or 120º F), remove the handle on 1300/1400 series or temperature knob on 1700/1800 series, and rotate the rotational limit stop:

    1. Counterclockwise if you have a Monitor® 1300 or 1400 series model (handle controls the temperature only, not the volume). For every tooth the rotational limit stop is rotated counterclockwise, the maximum water temperature will decrease approximately 6º F. NOTE: If water temperature is too cool, rotate the limit stop clockwise.


      counterclockwise temp set stop

    2. Clockwise if you have a Monitor 1700 or 1800 series model (handle controls volume; temperature knob controls temperature). For every tooth the rotational limit stop is rotated clockwise, the water temperature will decrease approximately 2º F. NOTE: If water temperature is too cool, rotate the limit stop counterclockwise.

    clockwise stop temp set

  5. For 1300/1400 series: Replace the handle. After verifying the water outlet temperature, secure the handle with the screw. Do not over tighten. For 1700/1800 series: After verifying water outlet temperature, snap temperature knob into place.

  6. MAKE SURE COLD WATER FLOWS FROM THE VALVE FIRST. MAKE SURE WATER (AT THE HOTTEST FLOW) DOES NOT EXCEED THE TEMPERATURE ALLOWED (see steps 1-4 above).

Note: Consumer safety is our number one concern. If you do not have experience with plumbing repairs, we recommend that you contact a licensed plumber for tub/shower repairs.

What is wrong in a Monitor valve if the hot water comes on first when rotating the handle counter-clockwise?

When operating a Monitor valve, the cold water should always come on first and rotating the handle counter-clockwise should then increase temperature. If this is not the case, the water lines may have been connected in reverse. This can be corrected by "flipping" the pressure balancing cartridge.


temp cold first


There are two types of valves. Choose A or B below depending on your series


A. 1300/1400 Series (RP19804)

Here are the steps to follow in reversing the operation of your faucet.

  1. Before you begin, make sure that you shut off the water supply to the faucet.

  2. Remove the handle. A clear knobs will have a Phillips head screw located just under the plastic cap; a lever handle usually has a small set screw located on the side.

  3. Slide off the finished metal (chrome, polished brass, white or almond) sleeve that covers the valve.

  4. Unscrew the bonnet nut. The bonnet nut is a large brass ring and should unscrew by hand. If it is too tight, wrap a towel around the bonnet and use a pair of channel locks. Make sure that the entire valve body does not start to rotate as you do this. Remove the bonnet nut.

  5. Do not pry the valve cartridge out of the body with a screwdriver. Place the handle on the cartridge stem and rotate it counterclockwise approximately 1/4 turn after the stop has been contacted. Remove the handle. Grasp the brass stem in the center of the white plastic assembly and pull it directly out, away from the wall. The valve cartridge should slide out of the body.

  6. Reinstall the cartridge after rotating the entire unit 180 degrees. Make sure that the raised plastic stop, marked HOT, is on the right side of the valve.

  7. Reattach the bonnet nut, trim sleeve, and handle.

 

B. 1700/1800 Series (RP32104 or RP32106)

Here are the steps to follow in reversing the operation of your faucet.

  1. Before you begin, make sure that you shut off the water supply to the faucet.

  2. Make sure the water supplies are turned off.

  3. Remove the sleeve, bonnet and cartridge. Pull the cap from the cartridge and rotate it 180 degrees or one half turn. Reinstall the cap on the cartridge.

  4. Reinstall the cartridge making sure that the key is fully engaged with the slot in the brass body. Be sure the HOT SIDE marking on the cartridge is facing toward the right.

  5. Install the bonnet and sleeve making sure the O-Ring is behind the groove on the brass valve body.

  6. Install the volume control handle with the lever to the right, then turn the handle to the ON position. Install the temperature control knob and rotate it to the left. The water should be hotter the further you rotate it to the left.

When or why does the rotational limit stop need to be readjusted?

The adjustable rotational limit stop found on Delta® Monitor® valves, allows you to set a maximum hot water temperature that flows out of the tub/shower. When set correctly, this safety feature ensures that the handle in your tub/shower faucet never goes beyond the set level, resulting in a safe bathing temperature

It may need to be readjusted if the inlet water temperatures change. For example, during the winter, the cold water temperature is colder than it is during the summer, which could result in varying outlet temperatures. Typical temperatures for a comfortable bath or shower range from 90º F to 110º F.

See information on setting the adjustable limit stop.

Watch this how to video for instructions on setting the adjustable limit stop.

Why can't I get enough hot water out of my shower, tub or tub/shower valve?

If hot water supply or temperature is not a problem elsewhere in your house, then it is likely that you have a Delta® Monitor® pressure balance valve. This valve contains an adjustable Rotational Limit Stop, a small plastic device designed to reduce the risk of scalding. You may adjust the temperature yourself by carefully following the instructions below for adjusting the Rotational Limit Stop.

You may adjust the temperature yourself by carefully following the instructions below or in this [how to video] for adjusting the Rotational Limit Stop.

  1. Let the water run until both hot and cold water is fully mixed.

  2. Rotate the handle fully counterclockwise to the hottest position.

  3. Place a thermometer in a plastic tumbler, and hold the tumbler in the water stream.

    temp no water trouble shoot

  4. If the water temperature is above what is allowed by your local plumbing code (110º F or 120º F), remove the handle on 1300/1400 series or temperature knob on 1700/1800 series, and rotate the rotational limit stop:

    1. Counterclockwise if you have a Monitor® 1300 or 1400 series model (handle controls the temperature only, not the volume). For every tooth the rotational limit stop is rotated counterclockwise, the maximum water temperature will decrease approximately 6º F. NOTE: If water temperature is too cool, rotate the limit stop clockwise.


      temp no water clockwise

       

    2. Clockwise if you have a Monitor 1700 or 1800 series model (handle controls volume; temperature knob controls temperature). For every tooth the rotational limit stop is rotated clockwise, the water temperature will decrease approximately 2º F. NOTE: If water temperature is too cool, rotate the limit stop counterclockwise.

    temp no water counterclockwise

  5. For 1300/1400 series: Replace the handle. After verifying the water outlet temperature, secure the handle with the screw. Do not over tighten. For 1700/1800 series: After verifying water outlet temperature, snap temperature knob into place.

  6. MAKE SURE COLD WATER FLOWS FROM THE VALVE FIRST. MAKE SURE WATER (AT THE HOTTEST FLOW) DOES NOT EXCEED THE TEMPERATURE ALLOWED (see steps 1-4 above).

 

Important points to remember:

  • See illustrations to reduce outlet temperature.

  • Make sure cold water flows from the valve first and does not exceed 120 degrees Fahrenheit at the hottest flow.

  • According to industry standards, the maximum allowable temperature of water exiting the valve should not exceed 120 degrees Fahrenheit. (Temperature may vary in your area.)

  • After adjusting water temperature, place a thermometer in a plastic tumbler and hold the tumbler in the water stream to test the temperature. Do not test with hands or any body part.

  • If your water supply or temperature is unacceptable throughout your house, you probably need to adjust the temperature on your water heater. We recommend you follow the instructions of your water heater manufacturer. Typically, water heaters should be set in the "moderate" range, especially if you have small children.


If you have any questions or require further assistance, please contact Customer Service at 1-800-345-DELTA (3358). A representative will be glad to walk you through these steps over the telephone.


Note: Consumer safety is our number one concern. If you do not have experience with plumbing repairs, we recommend that you contact a licensed plumber for tub/shower repairs.

Customer Q & A

(55 Questions : 60 Answers)

Product Q&A

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Hello, I have the following faucet (see picture), not sure of model number. When I turn the temperature selection knob toward cold, it stays scolding. When I get to the far right of cold, the volume of water shuts off, even though the volume control knob is still wide open. Where should I begin? Any help would be appreciated. The faucet is from the 1998 era (new with the house).

Thanks,
Ryan
Topics: Performance
Age: 35 to 44
Gender: Male
Ownership: 10+ years
Skill Level: Beginner
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2 days ago
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Ryan
Tecumseh, MI 49286, USA
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delta monotor bath faucet

I have replaced the cartridge in the bath faucet and have no pressure in tub but have a little in the shower. good pressure in the rest of the bath room. could the line between the diverter and faucet be pluged?
Age: 65 or over
Gender: Male
Project Type: Replacement
Ownership: 10+ years
Skill Level: Intermediate
1 month, 3 weeks ago
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fred
Petoskey, MI, USA
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Answer: 
Hi Fred, Thank you for your question. Based on your description it does sound like there is some debris or blockage in the lines. We recommend flushing the faucet. Here is a link to our How to Flush the Supply Lines on Your Delta Tub or Shower video.
http://www.deltafaucet.com/shopping...
If you believe the issue is in the line running to the tub spout you can remove the spout and snake the line.
Thanks,
Dave
Skill Level: Advanced
1 month, 3 weeks ago
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What is the part number to convert my gold trim to chrome? I have a 1300 series shower only Delta Monitor. House was built in 1996. Which big box sells these?

Screws at 1 and 7 o'clock
Dual handles for temp and flow
Brown temp control trim ring
Crystal flow control handle
Topics: Purchase
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2 months ago
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Matt
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Answer: 
Hi Matt, Thank you for your question. The pictured faucet is a 1500 series faucet. You can switch out the polished brass trim to a new Monitor T17 series trim and continue to use the existing rough in valve. You would need to order the T17 Monitor shower only trim of your choice, a RP32104 cartridge and a RP22734 bonnet nut to make the change.
Your rough in would not be compatible with a 13/14 series trim.
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Dave
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2 months ago
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how do you adjust the water temp on a B112900 series shower diverter

2 months, 4 weeks ago
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rich
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Answer: 
Hi Rich, Thank you for your question. The rotational limit stop on the model B112900 is located on the end of the cartridge. You will need to remove the handle and the trim sleeve to access the cartridge. Instructions for adjusting the rotational limit stop are found in step 7 on page 7 of the linked manual.
http://www.deltafaucet.com/customer...
You basically remove the o-ring from the end of the cartridge and move the top gear arm to adjust the temperature.
Thanks,
Dave
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2 months, 4 weeks ago
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The flow rate slows to a trickle when I turn to 100% hot water. The hot water temperature is fine, it is the flow rate which is not. I am on city water. I investigated. turned off the integral hot and cold water stops and I removed the cartridge; it looks brand new. I then turned on the hot first and then the cold integral stop (one at a time), the water flow is equal on both sides (it hit the other shower wall like a firehose for both hot and cold trials). Did I get a bad cartridge? Or is there some other reason for the water flow rate to slow to a trickle when 100% hot chosen?
Topics: Performance
3 months, 1 week ago
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Mark R
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Answer: 
Hi Mark, Thank you for your question. We recommend verifying that the temperature limit stop was adjusted properly. Step 4 on page 7 of the linked manual will cover this process.
http://www.deltafaucet.com/customer...
We also have a How to adjust the rotational limit stop video. The thermostatic cartridge is covered at the 2:48 minute mark.
http://www.deltafaucet.com/tools-re...
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Dave
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3 months ago
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need repair manual for older version of Model #470

need to disassemble an older version of Model $470
Topics: Care/Maintenance
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3 months, 2 weeks ago
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curt
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Answer: 
Hi Curt, Thank you for your question. Here is a link to our website that will take you to the model 470. You can access the parts diagram, manual, and spec sheet for the original 470.
http://www.deltafaucet.com/customer...
Thanks,
Dave
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3 months, 2 weeks ago
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Shower water now only luke warm

Based on the YouTube video on adjusting the RLS, I have a Delta 17 series faucet (I think). I adjusted the RLS with no change in the water temp. It previously got very hot but after having a water softener installed (VERY nasty water) about 3 months ago, it now gets warm but not hot despite being set on the hottest temp. (Water at every other spigot is fine.)

I tried turning off the shut off for each the hot and cold but with only one open, the water only came out in a trickle.

Any other ideas on how to get a hot shower?
Topics: Performance
Age: 45 to 54
Gender: Male
Project Type: New
Ownership: 2-5 years
Skill Level: Beginner
3 months, 3 weeks ago
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Bee Swiss
Marengo, OH 43334, USA
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Answer: 
Hi Bee Swiss, Thank you for your question. It souds like some debris may have gotten into the cartridge or hot water line leading to the faucet that is restricting the hot water flow. We recommend removing and cleaning the cartridge and flushing the faucet with the cartridge removed. The faucet has to have the hot and cold water on or else the pressure balance function of the faucet will not allow full flow.
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Dave
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3 months, 2 weeks ago
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R10000-UNWSHF

Would there be an advantage to using a rough in valve with stops when using a 17T cartridge?
Is it OK to use a high flow rough in valve with a 17T cartridge?
Topics: Purchase
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3 months, 3 weeks ago
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Paul
New Hampshire, USA
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Answer: 
Hi Paul, Thank you for your question. The advantage of the rough with stops is that you can shut off the water at the faucet durings repairs without shutting water off to the rest of the house.
You can use the 17T thermostatic cartridge in the high flow rough.
Thanks,
Dave
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3 months, 3 weeks ago
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Why do I not get hot water out of nyla faucet?

I have a Nyla single hole faucet with riser in bathroom over a vessel bowl. Bought new and installed it in June 2013. Worked fine until last four months. Over that time the hot water pressure has grown less and less until I no longer get any hot water out of the faucet (as of today March 1, 2015, about a year and nine months into use.) I have very good pressure using cold water.

I have not yet disassembled to check the line for clog or debris. I'm guessing that should be my first step, but wondering if you have received other complaints about this problem. Thanks for any and all.
Topics: Warranty, Performance
Age: 45 to 54
Project Type: Replacement
Ownership: 2-5 years
Skill Level: Beginner
3 months, 4 weeks ago
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Jeffer
Fort Wayne, IN, USA
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Answer: 
Hi Jeffer, Thank you for your question. Checking for debris on the cartridge and flow restrictor, and flushing the supply lines should help restore the hot water flow. Here is a link to the manual for the model 17708LF that includes the parts diagram to help with the repair.
http://www.deltafaucet.com/customer...
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Dave
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3 months, 3 weeks ago
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I have adjusted the stop mechanism inside of the handle to the maximum but at a loww volumn the water is still cool. as soon as the volumn is turned up, it gets warmer. Is there some other way to increacse the hot/cold water mix at a low volumn of water?
Age: 65 or over
Gender: Male
Project Type: New
Ownership: < 1 year
Skill Level: Intermediate
4 months ago
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Bob
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Answer: 
Hi Bob, We are sorry that you are experiencing a problem with your T17230 faucet. Unfortunately as the flowrate from the valve drops down to approximately 1 gallon per minute or less the temperature will fluctuate. You may want to consider installing a shower arm volume control like our U4760-PK that will allow you to reduce the water flow and not affect the water temperature.
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Dave
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4 months ago
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