I have a new whirlpool water heater 40 gallons I run out of hot water when taking a shower. what could the problem be?

No Hot Water - Electric Water Heater Troubleshooting

www.whirlpoolwaterheaters.com/owner-center/.../no-hot-water/

Whirlpool's video explaining potential reasons your water heater is not working ... Troubleshooting and Repair · No Hot Water (Video) · Replacing a Heating ...

Electric Water Heater Repair and Troubleshooting ' Whirlpool

www.whirlpoolwaterheaters.com/owner.../troubleshooting-repair/

Troubleshooting and Repair of a Standard Electric Water Heater. No Hot Water ... Not getting power is a common reason new water heaters don't work.

Troubleshooting Electric Water Heaters in MINUTES ~ Step ...

? 7:01
https://www.youtube.com/watch?v=SlyStHM9Nr0
Oct 4, 2013 - Uploaded by electronicsNmore
My tenant has a electric 30 gallon water tank. cimarron by Reheem. model ... So if u notice your water is overly hot and then notice no hot water ...

It *may* not be a problem with the water heater itself necessarily. When you say "keep adjusting the water temperature when you're taking a shower" I presume you're talking about turning the shower hot/cold knob(s) and not the temp thermostat on the water heater itself.
If so, when it starts to run colder, turn the knob all the way to full hot. Is the water then very hot? If so, the water heater is working fine & doing its job, and the problem is likely to be in the shower faucet mixing valve itself. Sometimes a faulty one will expand the inner seals/cartridge as hot water flows thru it, and starts to (wrongly) restrict the hot water flow, thus causing the constant need to "turn the dial up a notch".

Hi,

The drain valve can always be replaced so you can drain that with no worries....after it is empty open and clsoe the cold water valve to flush more...

As far as being large enough... that depends...

If you have a teenager like I do that takes 40 min showers in steaming hot water... no....
If you are running more then one shower at a time... then probably not...

The other thing that could have happened is that the dip tube for the cold water inlet has broken off or disintergrated...that happens...
Usually you will then get cold water and the gas valve will not yet have kicked on the burner, because the cold water is not going to the bottom...

If it is a new install... check thet the supply and return are hooked up correctly...

thermostat is gas vavle may also be bad, but not too likely...

heatman101

A leaking water heater cannot be repaired, assuming it's the tank leaking and not nearby water pipe.
http://waterheatertimer.org/Water-heater-leaking.html

First thing is to protect your property from catastrophic tank failure where tank ruptures and water runs until it is shut off:
Tanks are under pressure when they are hot.
Close cold water shut-off located above tank.
Turn control knob to 'pilot' so pilot is lit but burner will not turn on.
Open hot side on tub for few moments to relieve tank pressure.

Now your property is safe.
You need a new water heater.
In mean time, gas water heater makes 41 gallons hot water per hour.
Shower used 5-9 gallons hot water.
Bath uses 10-15 gallons hot water.
You can turn on water heater for short stretches and limp by until you get a new heater.

Steps for installing gas water heater:
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Hello,

Hot water heaters are a touchy thing. There performance depends on your demand. If you are using an energy saving shower head I would expect you to have enough hot water for easily a couple of showers. But, if your using the "power flush" type shower heads that use 3.5 gpm or more, the 40 gallon heater is not enough. Also, consider type of water your heating. Is it well water or municipal. Unsoftened well (this includes some municipal well supplies too) water causes hardness ions to cake the heater element making them less efficient. If you have the low flow shower, it is likely you have an element burt out. They can simply be replaced and picked up at any big box store for less than $20 dollars. Each element can be tested in place with a continuity tester. If your not sure how to test, but would be willing to replace the elements - replace both of them. You will have to shut off power to heater and drain tank completely before removing elements. Replace elements with same wattage or higher. Most have two 2250 watt elements for a total of 4500 watts. you can easily install two 3000 watt elements and have a quicker recovery rate and more hot water than ever. Good luck.
BW

A 40 gal. electric water heater will give you aprox. 32 gal. of hot water in one setting, since they do not reheat as quickly as gas. So if you are using a newer 1.5 or 2.0 gpm shower head. You could take a 16 minute shower with straight hot water. If you are running 2 new shower heads at once you could get 8 minutes. If you using the tub spout the times decrease. Some of my customers like to turn up the temerature on the thermostat a little so they can mix more cold and get it to last a little longer. Be very careful doing this.
If your water heater has a lot of calcium built up in it the times will decrease.
With out seeing the heater, you mention it is a mobile home heater so I am guessing that it is bottom fed.
I hope this has helped.

I would use the instant unit for a secondary unit to a large conventional heater, 40 gal min, gas or electric. They are both about the same now, but when the power goes out, you might not have the pump running, but you will have hot water! And whether it is a secondary or a primary water source, you will have a hot supply feeding it just in case. We have 2 people in the house, and a 30 gallon unit, and it is not big enough. The 40 gallon tank worked great. Hope this helps.

Was the tank full and all air out of lines before turning power onto it. If it's not full it will blow the new elements you just put in.


If the bottom one is good you get like luke warm then it will start cooling off.

If the top one is good it will be a burst of real hot then cold.

Will the water stay hot in the kitchen sink? Try to isolate the problem. If it is happening at all hot water locations, then it will be related to your water heater. If just in the shower then it is related to the mix of water ratio coming out of the shower hear. If its only the shower, then you are getting too much cold and not enough hot through the pipes. This can be very simple to fix by replacing the handle going to the shower. If this does not work then you may have a problem in the hot water pipes. After you isolate the problem, please post another question here.

Nothing wrong with waterheater. Did you perhaps reverse hot/supply lines on new shut off valves?? try reversing lines. Maybe

Please rate. Thanks jj505