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My hot water heater has no hot water after the faucets were sputtering out acting like there was air in the pipes. The hot water pipe coming out of the heat is not hot but warm.

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  • Tim Whalen Oct 17, 2010

    is it electric? is water coming out of the hot water faucets? If it is electric and water is coming out then the circuit breaker may have tripped or the thermostats are bad. If it is gas then the coupler may need replaced as it is not staying lit. Hope this helps Tim

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DID YOU CHECK THE THERMOSTAT ON THE WATER HEATER? FLUSH OUT THE SEDIMENT AT THE BOTTOM SEE IF THAT HELPS.. MAY NEED A NEW THERMOCOUPLER!!! GOOD LUCK

Posted on Oct 17, 2010

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1 Answer

Water pressure


Here is what should be going on.
There is a length of pipe between the hot water that is in your tank and the nozzle you are expecting to get it out of.
It is really possible the are nearly 3 gallons of water in those pipes, especially if the water heater is many feet from the faucet.
Now about the drop in water pressure.
Try the cold water.
Does it do the same as the hot? Does the pressure drop after 2 - 5 minutes?
If so, suspect your pipes are clogged with sediment. How old are the pipes and the house/apartment?
Does the water contain minerals that clog pipes?
If the cold water is good, and the hot not, I should suspect there is blockage in the hot water pipes, especially going in to or coming out of the water heater., or perhaps the faucet is clogged with rust or deposits.
God bless your efforts.

Oct 19, 2015 | Water Water Heaters

1 Answer

Water meter keeps running. When I turn off the water supply to the hot water tank the needle on the water meter stops, does that mean that I have a leak in the hot water pipe coming out of tge tank.


Yes you have a leak on hot pipe or TP overflow tube.
Put ear against pipe to listen for sound of running water.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#listen
If TP valve goes into drain line, check if water is running down TP overflow tube.
Check each faucet for leaks.
If pipes are under slab, put ear against each faucet to determine which faucet is closest to broken pipe.

Mar 23, 2013 | Water Heaters

1 Answer

Heater takes more than 1 minute to get water to kit faucet , then temp fluctuates


1) Guesses: Sounds like a bad single-handled faucet cartridge, or low water flow at faucet, or clogged water filter.
Replace faucet cartridge, clean the aerator, and/or clean sediment out of pipes below sink, and clean water filter at tankless unit each month.

2) For exact measure of problem:
Typical faucet can have 2 gallon per minute flow rate.
2 gpm flow rate means faucet fills 1 gallon container in 30 seconds. Test faucet using 1 gallon container and a cooking timer to get flow rate.
Clean aerator to improve flow rate. Compare kitchen flow rate with other faucets in home.
http://waterheatertimer.org/Low-hot-water-pressure.html

Most homes have 1/2" diameter pipe running to kitchen faucet.
100 feet of 1/2" diameter pipe holds 1.2 gallons of water. This assumes no sediment build-up inside pipes.
http://waterheatertimer.org/Water-heater-recirculation-system.html

Assuming only hot is turned on: If faucet is 100 feet away from water heater, and pipe diameter is unobstructed 1/2" diameter, and faucet has 2 gallon per minute water flow, then hot water should arrive in 36 seconds.
50 feet away, and hot water should arrive in 18 seconds.

If kitchen has single handled faucet, and the handle is raised in the middle, then equal amounts of hot and cold water are drawn at same time. This doubles amount of time for hot water to arrive.

If single handle faucet has a bad cartridge, then faucet can have crossover.
Crossover means that cold water can enter the faucet even if faucet is turned to hot.
Bad single-handled faucet cartridge can delay or stop the arrival of hot water.
http://waterheatertimer.org/Crossover.html

Tankless require maintenance including cleaning combustion parts yearly, de-lime heat exchanger frequently, and clean water filter each month.
http://waterheatertimer.org/pdf/Tankless-maintenance.pdf
http://waterheatertimer.org/pdf/Bosch_Overcoming_fluctuating_temps.pdf
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

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Sep 15, 2011 | Rheem Direct Vent Natural Gas Tankless...

1 Answer

I have a leak coming from the "cold" line right at the valve joint. There is signifigant calcuim build up on the pipe from the valve to the connection of the water heater, (maybe 8 inch of pipe)...


Very simple - call a Plumber. He will fix your plumbing problem, and any foreseen potential problems related to your water leak. He may also suggest replacing your 6 year old water heater. Of course ..... for a professional cost.
However, depending on your time, skills, proper tools, patience and luck, it's easy enough to perform yourself:
1. Switch off the water heater Breakers (220v) in your service panel.
2. Turn off the water supply to the water heater.
3. Attach a water hose to the drain faucet. ( a good time to flush sediment -calcium deposits)
4. Open a hot water faucet to vent (above the level of the water heater drain - kitchen sink)
5. Remove the suspected leak components. (a union connection is a good place to start)
6. Install New pipes -3 wrap all male threaded ends with teflon Tap. Tighten securely - using 2 wrenches.
NOTE: Before refilling - you can turn on the water heater supply valve for a few minutes, to flush out any lingering calcium debris.
7. Shut off drain valve - remove hose. Shut off venting hot water faucet.
8. Turn on water supply valve to fill water heater.
9. Open a hot water faucet to relieve air pressure while filling - preferably the bath tub faucet, it doesn't have a screen that might clog.
10. When water flows without air - shut off tub faucet.
11. Look for leaks.
12. Switch the water heater Breakers on.
Note: 50 gallons should take an hour or more to heat up. Turn on a hot water valve momentarily within this heat up time to relieve thermal expansion. ( the PT valve on your water heater will perform this task if pressures/temperature exceed new water heater tolerances - it's just a precaution to introduce these fluctuating pressures on your fragile 6 year old unit)

These are just basic instructions - assuming you fill in the common sense and work safe steps.
Good Luck - The Skill will only come after trying.

Mar 05, 2011 | Rheem 50 GAL ELEC TALL Water Heater 6YR SC...

2 Answers

Water doesn't flow from the hot side. Was really cold last night. Is there a way to get it to flow?


Hi,
Yes... the water pipe is probably frozen... take a hair dryer and focus the heat on the piping...moving it back and forth along the piping to thaw it out...

heatman101

Feb 03, 2011 | Water Heaters

1 Answer

I have a humming and knocking that is happening in my pipes. It seems to be related to my hot water heater. I have unplugged the heater and that helps most of it, but there are still times during the day...


Knocking water pipes are caused by air trapped in the pipe. If the pipe only went uphill and horizontal, the air releases out of the faucet and doesn't cause a problem. But if the pipe takes a turn back down, there is an opportunity for the air to remain trapped. Try this ---. Turn on all of your hot water faucets full blast at the same time. Start with the highest faucet farthest from the hot water tank and work your way back to the one closest to the hot water tank. Count to ten, then close them in reverse order. If that doesn't clear the air, then look for a place where the pipe travels horizontally then back down. If such a place is accessible, and if the pipe is copper, buy a self-piercing tap of the type that are used to supply water to an ice maker. Install it and let some water out and hopefully some air out. If you also attach a section of clear hose you and you open the valve very slowly, you will be able to see the air bubbles in the hose. I use just such a setup on my hot-water heating system and it works like a champ. Good luck!

Nov 26, 2010 | Water Heaters

1 Answer

Turned off the hot water to fix a leaking tap. now the tap has no hot or cold water and the hot water tank valve is leaking?


It sounds like two problems.
Problem 1) Clog inside faucet or clog inside pipes at faucet
Remove supply tubes leading to faucet and see if problem is inside pipes or inside faucet.
My bet is clog inside faucet.

If you have galvanized pipe that meets copper pipe, this can be trouble spot.
Article on clogged water pipes at Inspectapedia:
http://www.inspectapedia.com/water/Water_Pipe_Clog_Repair_Guide.htm

Article on clogged pipes:
http://www.waterheaterrescue.com/pages/WHRpages/English/Troubleshooting/Tanklets/backflushing.html

Problem 2) Water heater leak ... you say tank valve is leaking? Is that cold-water shut-off valve? Or tank drain valve? Or TP valve?

If cold water shut-off is leaking, then replace shut off.

If tank drain valve is leaking, then check if plastic valve is cracked. If drain valve is cracked, then replace with a brass valve from Home Depot. If plastic valve breaks off, then use hammer and screwdriver to gently chip out the broken plastic valve. New valve threads need teflon tape to seal pipe. If valve is just dripping, then put garden-hose cap over end of valve and screw down tight.

If TP valve is leaking, then replace with same temperature and pressure rating.
New TP valve threads need teflon tape to seal pipe.

Problem 3) If pressure is low all over house:
Buy pressure gauge at hardware store that screws onto hose connection.

Test pressure on outdoor spigot.
Open faucet and check if pressure drops. This says if problem is inside pipes that enter house.

Test pressure on water heater drain valve.
This says if pressure problem is before -or- after water heater.

If problem is before the water heater, then shut-off valve located on cold water line is suspect.
If problem is after water heater, it could be in hot water outflow pipe on top of water heater, or a nearby elbow.

Remove hot water line leading from water heater and check pressure. This says if problem is where hot water leaves tank.
Read articles above about clogs inside water lines.


Nov 16, 2010 | Rheem Water Heater Pressure Relief Valve

1 Answer

I have replaced my electric water heater and I have checked everything I can think of and I still run out of hot water in 3 minutes. What on earth is the problem.


3 minutes?? does the water run cold then? or just warm?
Is this what the tank you replaced was doing? If so, then you may have: 1 a recirculating pump instant hot water system thats faulty and allowing cold water backflow into hot water piping. 2 A tempering valve that has stuck, allowing cold water into your hot water system.
Or maybe a broken or missing dip tube in your new heater.
If after 3 minutes the water is coming cold out leave that faucet running and go to heater and feel the hot water outlet pipe from the heater. if that pipe is hot then the heater is not the problem. If the hot pipe from the heater is cold the heater is the problem. (Make sure the cold pipe coming into the heater is connected to the Right side marked "cold" !) If there is a tempering valve by the heater: feel the output from the tempering valve, if it is cold and the pipe from the heater to the tempering valve is hot, then the tempering valve is the problem. If all these are OK somewhere in your plumbing system hot and cold may be connected possibly a faucet or showerhead that is shut off at the spout/head, but hot/cold handles are left turned on then cold water can backflow thru hot pipe.

Jan 18, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

No hot water


You may need a circulating pump but I can't explain why it was fine before and not now. What I would do is turn the supply off to the water heater along with the power, remove the outlet supply. Open all hot side faucets in the home, using compressed air blow through the pipes if the air comes back at you, then there is a blockage before the hot manifold. If air moves, shut one faucet off at a time to try and determine where the culprit is. I don't know what else to tell you other than that. If air moves through the faucet every time, then you may want to put a circulating pump on. The only other expination is that when they repaired the pipe, some debris or eccess solder is blocking the hot supply. I have seen rocks in units as well. Because of the fix, you may want to take apart each faucet in the house and using a flashlight, look in the hot supply side to see if you can find any debris in those as well. Its not unusual after a repair, to have debris caught in them. Hopefull this helps.

Apr 07, 2009 | Water Heaters

1 Answer

My hot water pipes were froze this morning. Michigan! I have cold(almost froze) There is not any water coming out in kitchen from hot side. I have cold though in every room. There is water coming out a...


no easy fix . your water heater should be fine most likely its up to temp ,thats why its not lighting its main flame . the frozen pipe is another story you need to get the heat up in the house open any cuppord doors that have pipes in them like under a sink ( to let heat from the room get it there ) leave a faucet on hot and wait . at some point you will unfreeze . but you migh end up with a broken pipe so keep your eye out for a water leak . good luck

Jan 16, 2009 | Heating & Cooling

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