Question about Rheem 81VP15S Point-of-Use Electric Water Heater, 15 Gallon, 120v

1 Answer

What cause the water heater to take more than an hour to heated up and unable to last longer. Usually its take about 15 min. to heat up and can last longer.

Posted by on

Ad

1 Answer

'Rheem 81VP15S point of use' is a single-element, 15 gallon, 120V electric.
Other 'point-of-use' sizes range from 2-1/2 to 6 gallon to 20 gallon.

Electric water heaters have 2 parts: thermostat and element. One is not functioning correctly. Most likely the element caused by sediment build-up.

How to determine if tank has element or thermostat problem:
Do not turn off water going into tank. Put hose on drain valve. Open drain valve. Does water come out like open spigot? If water does not flow, then heater is likely clogged with sediment.

Solution 1: If water flows out like a spigot, the thermostat is probably bad. Read: How to replace thermostat.

Solution 2: Water does not flow, so element is surrounded by sediment build-up and cannot heat water. You need to clean out tank with shop vac, and put in new element ... plan full day and 3 trips to hardware store. Simply draining tank will not remove sediment. Sediment is chunky and will not come out voluntarily.

Buy element before starting:
-Turn off electricity
-Open cover on side of tank, remove insulation (these have to be put back for proper operation of thermostat)
-The are 2 electrical parts >>the element and the thermostat which is located above element
-Element wattage is printed on element and also shows on label on side of tank
-I think Rheem element is held in place with 4 hex bolts
-Take photo of element to hardware store so you have part on hand before removing old element
-If element is 1-1/2' diameter hex type, you need inexpensive element wrench from hardware store + the element

Drain tank and clean sediment:
-Read: To open drain on water heater so water comes out
-Read: How to clean sediment out of water heater

Posted on Oct 01, 2010

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:

1 Answer

Sounds like a truck


If the heater is more then a few years old the heat exchanger is probably corroded. Air flow from the blower motor can't squeeze thru the exchanger fins and causes loud vibrations. It can sometimes be cleaned but usually requires replacement of the heat exchanger. If you are not familiar you should definitely have a professional sevice the unit. Continued use in its current state can cause many other issues. Be prepared because the heat exchanger is the most expensive part of the heater and the most difficult to replace

Jan 10, 2014 | Water Heaters

1 Answer

Ticking sound top 1/3 of AOSmith Electric Water Heater


Replace heat trap nipples or inserts?
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#heat-trap
Factory Heat traps save $2-$9 per year but can cause noise, and you can make your own heat traps.
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html#heat-trap
Electric water heater is probably the only household appliance made today that can be maintained and repaired by homeowner to last almost indefinitely. Certainly no other water heater can last as long, even with maintenance.
http://waterheatertimer.org/How-to-maintain-water-heater.html
Add a comment and say what you find

May 06, 2013 | Water Heaters

1 Answer

Electric Water Heater blows fuse, but only every few years


Your residential water heater is not 9000 watts. Or it would blow the fuse every day and melt the wire. Instead, you have dual-element non-simultaneous 4500 watt water heater.
http://waterhatertimer.org/How-it-works.html
http://waterheatertimer.org/Figure-Volts-Amps-Watts-for-water-heater.html
Look at label for 'total connected watts'
http://waterheatertimer.org/images/Whirlpool-energy-smart-watt-rating-IMG_2600.jpg
25 amp breaker or fuse and 10 gauge wire is minimum acceptable for 4500 watt water heater.
http://waterheatertimer.org/Color-code-wire.html
Troubleshoot blowing breaker or fuse:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#trip-breaker
Why does it blow fuse once each year?? I don't know.
Fuses and breakers trip when overheating occurs on wire.
Each fuse or breaker is rated for heat, and over time, it will get hot and then cool and then get hot again ... this action weakens fuse or breaker.
To solve problem: install 3500 watt elements (and clean sediment out of tank). Wire will run cooler, and fuse will last longer. Whole fuse box will demand less power, and run cooler, and will last longer as a result. So there is less stress on electric service panel.
http://waterheatertimer.org/How-to-replace-water-heater-element.html
3500 watt element will heat water to same temperature, but takes longer. For example: 4500 watt heats 21 gallons per hour, while 3500 watt heats 17 gallons per hour.

Apr 28, 2013 | Water Heaters

1 Answer

I have a rheemglas standard electric 40 gallon water heater and the hot water in the shower or any where in the house only last 3 maybe 4 mins.....?


You should have two panels on the front of your water heater most likely painted blue. Each of these panels contains a heating element. The top panel contains the reset switch. Unscrew and remove the top panel and you'll see the reset switch - it is the red button. Press it to see if it clicks. If so, your hot water should last longer.

If it does not last longer than you stated, then you most likely have a bad heating element. The problem is that unless you remove both elements, you won't know which one is bad. If you don't feel comfortable turning off the water valve to the heater, turning off the power to your water heater at the circuit breaker box, draining the heater of it's water using a garden hose, removing the wires from the elements, removing the elements and installing new ones from your home improvement store then you may want to hire a plumber to do it.

The process is fairly easy but time consuming. The most time is draining the water heater. If you do choose to do it yourself, you will need to get a special "wrench" from your home improvement store to remove the heating elements first. The store can help you with the element(s) you need once you take them in.

Regards

Apr 05, 2011 | Rheem Water Heaters

1 Answer

Our 20 yr old water heater periodically gives much less hot water while taking a shower. I realize this is saying there's much less hot water in the tank that's actually as hot as I want it! Would this...


Hello, Your 20 year old water heater is nearing the end of it's useful life. Most water heaters last only 20 years before they start to leak. The reason most likely it has intermittent heat spurts is most likely due to two things, 1. The unit has a lot of rust in the water (you don't normally notice it during a shower) If you were to bleed off the rust by attaching a hose or bucket to the bottom of the heater's water outlet, and /or the over pressure tube located off of the top of the unit that has a copper pipe on it pointing toward the ground, that you would see a lot of rust come out of it. You could do this and get a bit more life out of it and better heat to boot, unless it decides to leak.
2. The water heater has a bad electric heating element (if it's electric that is). Replacing it may solve the problem but most likely the heater still isn't going to last too much longer anyways, so that would be a judgement call on your side.
You would in all likely-hood be better off replacing the entire water heater now while it is in a controlled environment before it leaks at some unfortunate time causing water damage and other damage at the same time when you are not around to control it.
Good Luck! Rich L.

Jan 02, 2011 | Water Heaters

2 Answers

Low boy water heater leaks at point where cold water pipe enters caseing.The leak is below the threads.The caseing is rusted at the point where the pipe goes through.Can this rusted place be patched or...


1) Your water heater needs to be replaced.
It cannot be repaired.
Tanks rust out after anode rod is depleted unless anode is inspected and replaced 1-3 years.
Water softener causes anode to deplete quicker, so inspect every 2 years.
Also stray household current can cause tank to rust out. Put bare copper ground wire between hot and cold pipes on new heater.

2) First thing is protect yourself from tank rupture where water heater bursts open and water runs until it's shut off. Ruptured tanks are big topic in homeowner insurance industry today because they cause major damage inside house.

- Turn off heat source so tank is not under pressure:
Gas: Rotate dial to pilot so pilot light stays lit, but burner does not turn on
Electric: turn off circuit breaker

- Turn off water going into tank using shut off above tank.
- Open hot side to bathtub to relieve pressure from tank.
- Check label on side of tank to get tank specifications for replacement.

3) What to do until replacement.
You can get by for a while on leaking tank by turning it ON only when needed.
Make sure tank is full of water before turning heat source back on.
This will buy time until replacement.
Electric tank heats 21 gallons water per hour.
Gas water heater 41 gallons per hour
Shower uses 6-9 gallons hot water, bath uses 12-15 gallon hot water.

4) Additional reading so next tank lasts longer
http://waterheatertimer.org/Replace-anode-rod.html

http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

http://waterheatertimer.org/Water-at-bottom-of-water-heater.html

Dec 05, 2010 | Water Heaters

1 Answer

Top heating element was broke. Replaced got hot water for week. Now have to run hot water for 20 mins before it goes from warm to hot. Top heating element reads 240VAC bottom heating element reads...


look for a badly connected power line ont he bottom element, or any connection upstream of the power terminals. voltage readings usually drop to that range when you only have one side of the 220v circuit connected.

Jun 20, 2010 | Rheem 50 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Warm water only


You can eliminate the shower control knob possibility by turning on your hot water anywhere else in the house. If you get hot water in other places, then it could be the knob causing it. A substantial lime buildup in the tank can also cause poor heat transfer from the elements to the water.

Sep 16, 2009 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

Not finding what you are looking for?
Rheem 81VP15S Point-of-Use Electric Water Heater, 15 Gallon, 120v Logo

183 people viewed this question

Ask a Question

Usually answered in minutes!

Top Rheem Water Heaters Experts

Donni Steen

Level 3 Expert

659 Answers

gizmonix

Level 1 Expert

13 Answers

Brad Brown

Level 3 Expert

15671 Answers

Are you a Rheem Water Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...