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

(69 Questions : 75 Answers)

Product Q&A

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I want a bath faucet with temperature and volume control

I currently have a Delta Monitor. I want a single lever bath faucet that will allow me to lower the volume, for the hot an cold water, to a trickle if I want to. Can I buy a new part or do I need a new faucet?
Topics: Purchase
Age: 55 to 64
Project Type: New
Ownership: 2-5 years
Skill Level: Intermediate
2 days ago
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Monitor man
Staten Island
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Answer: 
Hi Monitor man,

Thank you for your question. All of our Monitor units are designed to provide only cold water at very low flow rates. This is a safety feature designed to comply with plumbing codes for pressure-balancing faucets. However, our TempAssure 17T series is thermostatic, and can deliver hot/warm water even at low flow rates. If your tub faucet was manufactured after September 2006, then the trim can be replaced by one of our 17T series trim kits. Otherwise, the rough-in would first need to be replaced with an R10000 valve.

TempAssure trims:
http://www.deltafaucet.com/bath/tub...

R10000 valves:
http://www.deltafaucet.com/search/r...

Best regards,
Jon
1 day ago
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Can an Intuition showerhead be installed with a thermostatic valve? What faucet styles are compatible with this combination?
Topics: Purchase
Age: 65 or over
Gender: Female
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1 week ago
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Arpana Sircar
Austin, TX, USA
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Answer: 
Hi Arpana Sircar,

Thank you for your question. You may use an In2ition shower head with any of our shower kits, including TempAssure thermostatic units.

Best regards,
Jon
6 days ago
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My cartridge is not marked which is Hot Side

I just got my trim package and the cartridge is not marked at all which is the Hot Side. I have the # PR46463 cartridge which is gray top, white on bottom. Only thing I have is a big #4 on one side where V notch is located. What to do now?
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1 month ago
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Michael
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Answer: 
Hi Michael,

Thank you for your question. The words "Hot side" should appear on the gear shaped piece on the front/top. If the cartridge is installed backwards it will not damage the unit, but the temperature will be reversed.

Best regards,
Jon
1 month ago
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i have 4353-dst and the water is not not enough what can i do?

THe water at the bath vanity is much hotter. The facet is brand new.
2 months, 1 week ago
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Al
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Answer: 
Hi Al, Thank you for your question!
In the installation instructions for the 4353-DST it provides information on adjusting the limit stop to either allow more hot or more cold water into the faucet. Below is a link to the instructions:

http://www.deltafaucet.com/customer...

Best regards,
Brandis
2 months, 1 week ago
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No temperature markings on the Lehara T17T238 shower faucet

As far as I can tell Delta does not mark any temperatures on shower faucet dials such as the T17T238. I take a shower at one temp and my wife at another so we change the temperature knob back and forth daily and have to guess at the setting before getting in the shower. Having 'C' and 'H' is of little help in resetting the temperature between our showers without sticking your hand in the shower to try to judge the shower. Is there a reason the temps or at minimum dial marks aren't put on the temperature dial? Do you produce any shower faucets where the temp is marked?
Topics: Features
Age: 65 or over
Gender: Male
Project Type: Replacement
Ownership: < 1 year
Skill Level: Intermediate
2 months, 2 weeks ago
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Skip
Chesterfield, MO
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Answer: 
Hello Skip,

Thanks for your question!

The reason we don't put temperatures numbers on the T17T's is because the Rotational Limit Stop can be adjusted to allow a higher or lower overall temperature, making any numbers incorrect if the adjustment is made.

However, we do make shower heads that show the temperature of the water that is output. Here is a link to more information on these Temp2O shower heads:

http://www.deltafaucet.com/smart-so...

I hope this helps!
2 months, 2 weeks ago
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Age: 55 to 64
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2 months, 2 weeks ago
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Maggie
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Answer: 
Hi Maggie, Thank you for your question!
The temperature dial pops off. You will need to grab on the rounded edge and pull outward.

Best regards, Brandis
2 months, 2 weeks ago
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Monitor 1500?

I believe this 1500 model. I am looking for a new cartridge,
from what I can tell I believe the 1700 series will work.
RP32104 Is the one that i believe will work. I thanks you for any help you can give me. It looks like you get this question a lot.
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2 months, 2 weeks ago
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Chris
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Answer: 
Hi Chris, Thank you for your question!
The product is our Delta 1500 series. The original cartridge has been replaced by the RP32104 1700 series cartridge.

Best regards, Brandis
2 months, 2 weeks ago
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Operating Pressure of Anti-scald Mixing Shower Valve

Hi,
What is the minimum and maximum operating pressures of a anti-scald mixing shower valve?
Topics: Performance
3 months, 1 week ago
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Yat
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Answer: 
Hi Yat, Thank you for your question!
The minimum pressure recommended is 50PSI and the maximum is 100PSI.

Best regards, Brandis
3 months, 1 week ago
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Delta model 134900

Is this a 1300 series? We had this installed by a plumber, but have only warm water. The inlet line is hot, & no other temp problems in the home. There is only a 90* throw for the handle. Can I use the directions given for 1300 series without calling the plumber back?
Topics: Performance
Age: 65 or over
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3 months, 3 weeks ago
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Valerie
Weslaco, TX, USA
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Answer: 
Hi Valerie,

Thank you for your question. The 134900 is a 13 series unit. The handle should be able to rotate a little further. You can adjust the Rotational Limit Stop to allow for more hot water. Please click the link below to view our How-To Video for help.

http://www.deltafaucet.com/shopping...

Best regards,
Jon
3 months, 3 weeks ago
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4 months, 1 week ago
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Tim
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Answer: 
Hi Tim,

Thank you for your question! There is a Rotational Limit Stop that can be adjusted to allow for more hot water. You can access the stop by loosening the set screw and removing the handle assembly. To adjust the stop, pull the white Rotational Limit Stop outward and rotate. Clockwise rotation will decrease the outlet temperature, counterclockwise rotation will increase the outlet temperature. Repeat as necessary. When finished, make sure that the Rotational Limit Stop is fully retracted into the seated position.

For more information, please see page 7 of the instructions.

http://www.deltafaucet.com/customer...

Best regards,
Jon
4 months, 1 week ago
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