Question about Texas Instruments TI-89 Calculator

1 Answer

I DON'T GET HOT WATER IN MY TANKLESS WATER HEATER ONLY SPORADICALLY

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

What model unit do you have?

Posted on Jul 15, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

Tip

Water Heaters go Tankless


You may or may not have heard about these cool little devices by now, but if not, here is the low down.

Tankless water heaters are used all across Europe and come in several varieties.

1. Natural gas fired on demand Tankless
2. Oil Fired Tankless
3. Electrical Tankless

The most prevalent among these is the gas fired version.

In America, these energy savers are just starting to gain a foothold.
Leaders in the field are Titan, Bosch, Rinnai, and Noritz to name a few.

The real benefit to Tankless over Standard water heaters is that you never waste energy heating water that sits in a tank cooling until you use it.
If you have a 20 to 80 gallon water in your home, it will run night and day at odd internals maintaining it's own heat.

What this means to you is that in a typical day, whether you use hot water that day or not, is that your water heater will cycle many times to maintain it's heat whether the hot water is used or not.

Some people try to drive this wasted energy use down by wrapping their water heater with thermal blankets, or by insulating the water heater closet itself, which has only proven to be partially effective.

Also bear in mind that these Tankless water heaters are quite small compared to the Tank version, some are as small as 18 by 12 inches.
This means that your old water heater closet can now be used to store your valuables without fear of starting a fire.

A further waste of energy occurs when the exhaust heat is funneled to the outside when it could have been diverted to a heat exchanger or other energy conservation device.

Tankless water heaters perform far better in energy use than the old school, Tank type water heater by simply heating water exactly when it is needed, then shutting down when the hot water tap is turned off.
What this means for you, the consumer is that you will have hot water any time you need it, and the water will remain hot as long as the hot water tap is opened.

There are virtually no cold water periods for a tankless water heater.
You have an endless stream of hot water, without wasting a single BTU of heat, kilowatt of electricity, or ounce of natural gas.

The real surprise here is that nobody really knows just how much their utility bill is being affected by that Tank style water heater until the first utility bill arrives. The savings are immediate and significant, both in terms of less energy consumption and Dollars saved.

Let me drive that point home in real life terms.
You definitely will NOT use MORE energy after your install.
You will most Certainly use less!

There are several typical applications for Tankless systems in any common home.

1. Low Volume On Demand heaters can be installed under the sink.
2. High Volume Tankless Whole House heaters supply the entire home.
3. On demand Budget Tankless heaters can be located at the sink coupled with whole house heaters for faster hot water delivery to eliminate cold spots. These are the most popular for the beginner Tankless solutions.
Your cold water pipe is split from the cold water valve itself to the Tankless heater under the sink as well as the cold water tap. The hot water outlet is then connected to the Tankless water heater under the sink to provide instant hot water, eliminating the need for a hot water tap from the main hot water supply. This results in even less energy waste since the smaller Tankless heater uses less energy than a whole house Tankless unit.
4. On demand Tankless heaters use virtually no energy to heat unused water. When the hot water tap is off, the Tankless unit is off.

The price point for these Tankless models is fairly competitive against a standard water heater, but can sometimes be more expensive depending on the model and water volume you require. What matters most though is that these Tankless versions begin paying for themselves the day they are installed.

My final word on this is simple.
Most other countries in the world have been using tankless water heaters for a very long time due to natural gas and oil prices. Their adoption of these devices is a necessity rather than a purchase of convenience.
In terms of technology, America falls close to last place in this field, as well as many other areas where energy consumption is a factor.

When you purchase a Tankless water heater, you not only save money, but you also help the environment by wasting less energy to heat the same amount of water you consume on a per use basis. You will also use somewhat less water since you no longer have to wait for that cold water to leave the tap so the hot water will finally flow.

The choice is yours.
Choose wisely!

Please Vote for this Tip if you found it helpful.
Bob S.

on Mar 25, 2010 | Plumbing

1 Answer

I have a new Richmond tankless. Every time someone turns on the water for a second the water heater comes on for a second. Is this ******* the unit ? I tell people to just use the cold water tap if th


Before calling service technician, copy following link for troubleshoot resources:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

If tankless comes on when HOT tap is turned on, then that is normal.
If tankless comes on when cold is turned on, then you might have crossover:
http://waterheatertimer.org/Crossover.html
If tankless comes on when single handled faucet is lifted in center, then that draws water from hot pipe and will activate tankless > so don't install single handled faucets to save water heater energy, regardless what type water heater you have.

Tankless require monthy-to-yearly maintenance to avoid common error codes. The product manual recommends yearly service. Since Rheem does not post service manuals, you generally have to pay somebody to take apart and test the unit. The cost of this far outstrips expected savings from owning expensive water heater that requires lots of maintenance, yet is heavily promoted as the solution to water heater problems.

Never install tankless water heater is best way to avoid complications of expensive water heater that is maintenance heavy, hard to diagnose, expensive to fix, etc.
Never expose tankless to more than 11 grains hard water.
http://waterheatertimer.org/pdf/Rheem-CondensingTankless-maintenance-2012.pdf

Aug 25, 2012 | Rheem Richmond Encore Condensing Tankless...

1 Answer

I have a recently installed richmond water heater. When the shower is running and someone turns the faucet on in the kitchen the water gets drastically colder in the shower. We didnt have that problem with...


Which type Richmond water heater?
Is this a tankless water heater or tank-type?

Tankless are notorious for 'cold water sandwich' under exact conditions you describe. You might need tankless with larger BTU burner.
Don't install a tankless.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

If you have tank-type water heater, then I suspect a clog in the hot water line, or single-handle faucet cartridge in show is going bad.
Same problems can contribute to tankless problems.
http://waterheatertimer.org/Low-hot-water-pressure.html

Aug 06, 2012 | Rheem Richmond

1 Answer

My Rheem tankless water heater has been flashing a C8 and 76 code. I can turn off the heater using the power button on the unit, but my hot water will only last for a shower or so. Any suggestions? ...


Before calling service technician, open following link for troubleshoot resources including Rheem chat and contact, possible manual, error codes, etc.:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

C8 76 is generally bad PC board. Call 800-432-8373
Just like a motherboard on your computer, the tankless PC board is operational center of tankless water heater.
Various sensors gather information from water pipes, gas line, vent pipe, and air supply to determine when to activate burner.
Most people understand that when their computer motherboard needs replacement, that computer will probably not work reliably again.

Tankless is basically connecting a complex computer to your plumbing and electrical lines and to a gas burner with a vent pipe to outdoors, despite knowing that plumbing lines, vent pipes, gas burners, and household electrical systems have plenty of problems on their own.

Age factor: When tankless is new and everything operates perfectly, the tankless works correctly.
And each tankless manual recommends yearly and monthly maintenance, just to maintain operation, the cost of which can exceed the expected 1-8$ monthly savings. And who wants to clean the water filter each month and delime the exchanger every year?
http://waterheatertimer.org/pdf/Tankless-maintenance.pdf

Don't buy a tankless water heater because the only folks promising unlimited hot water and effortless water heating experience while saving money with a tankless are the tankless promotors.

Solve most tankless problems yourself, same day, any brand for about $350.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Sep 22, 2011 | Rheem Tankless Water Heater Main Remote...

1 Answer

Powerstar 115 tankless tripping reset ontop of #2 heat chamber #1 does not get overly warm mainly because of incoming water temp. but #2 seems to be heating after water flow stops to hot to touch and...


I don't have specific suggestion for tankless tripping breaker or if that is a circuit breaker problem or a tankless problem.

1) Move wires to another same-size breaker and see if problem persists.

2) Compare amp draw on tankless label with wire size and breaker size amp rating.
For example 30 amp breaker using 10ga wire is rated for 80% of listed amps or 24 amps.

3) If you are drawing full 30 amps, then 30 amp breaker is getting hot. Breaker trips with heat. Older breakers can trip more easily.
http://waterheatertimer.org/How-to-replace-circuit-breaker.html

4) Before calling service technician, open following link for Bosch troubleshooting steps.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

5) Be sure to read manual for yearly maintenance requirements.

6) Add a tempering tank for incoming cold water problem.
http://waterheatertimer.org/Tempering-tank.html

7) All gas tankless brands can be repaired by homeowner for $330.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Apr 22, 2011 | Bosch PowerStar AE115 Tankless Water...

1 Answer

Hi, I have a Rheem water tankless heater and there was a storm lastnight so suddendly I have no hot water. What can It be?


1) All tankless water heaters require voltage to operate electronic sensors and circuit board.
This is true for gas and electric tankless.

2) Check that circuit breaker is not tripped. Push circuit breaker all the way one direction and then all the way back other direction.

3) There are fuses located inside the tankless unit, so check your manual for location of each fuse.
Manual is filled with useful maintenance and troubleshooting steps.

4) Before calling service technician, open following link for troubleshoot resources including manuals, Rheem on-line chat, and useful links for maintaining tankless water heater.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

5) If you had nearby lightning strike, I don't know if your tankless is protected from surge.
I recommend whole-house surge protector for tank and tankless water heater electronics, and household circuits. Surge protection is installed in main breaker box, and is replaced after each surge event. Separate protection needed for co-ax TV satellite, co-ax surge protection can be found on some ordinary power strips.
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#surge

Apr 11, 2011 | Rheem Tankless Hot Water Heater...

2 Answers

Water runs hot then cold then hot during showers


YOU MAY HAVE TO DESCALE YOUR UNIT I have this problem along with a bunch of error codes. Please don"t call the Bosch 888 number. They want to speak to a tech. In addition, their off during the weekend. Tankless water heaters are great when thier working. Mine is not.

Oct 17, 2009 | Bosch 2700ES-NG Natural Gas Tankless Water...

Not finding what you are looking for?
Texas Instruments TI-89 Calculator Logo

Related Topics:

71 people viewed this question

Ask a Question

Usually answered in minutes!

Top Texas Instruments Office Equipment & Supplies Experts

kakima

Level 3 Expert

102366 Answers

k24674

Level 3 Expert

7993 Answers

Stevan Milanovic

Level 2 Expert

262 Answers

Are you a Texas Instruments Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...