Question about Rheem 50 Gallon FVR NATGAS Water Heater 6YR 22V50F1

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I have very low hot water pressure in may home....cold water pressure is ok....

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You have clog in hot water line or inside water heater.
Use Brady BTG100 pressure gauge to assist.
http://www.ronshomeandhardware.com/BTG-100-100-PSI-Water-Pressure-Gauge-p/405357.htm

Put gauge on outdoor spigot and then turn on hot water to get baseline.
Put gauge on water heater drain, and then turn on hot water. If pressure stays high, then clog is in hot water nipple or inside pipes after water heater.
If pressure drops, then clog is in cold water nipple, shut off valve above tank, or somewhere in line between main cold water and water heater.
Water heater nipples, shut off to water heater, and elbows are good suspect.
Any galvanized and copper connection is good suspect.

Add a comment with your experience so others with same-similar problem can benefit.

Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Posted on Apr 06, 2011

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1 Answer

How can I increase the hot water pressure in my home?


Cold water pressure is what give you your hot water pressure so they should be equal but if you have a restriction on the hot side such as a valve not opening on the hot side or not opening all the way then you will have less pressure or the pipe work on the hot side is not proper. Hard to say but check the valve on top of the hot water heater

Aug 13, 2014 | Water Heaters

1 Answer

I have a problem with low hot water pressure can you help would an elec shower help


1) If possible, it is Best to solve pressure problem before installing new shower.
http://waterheatertimer.org/Low-hot-water-pressure.html

2) If the cold water has good pressure, then Electric shower could fix problem ... but shower would have to be connected to the cold water line and not the hot.

3) Seems the expense of adding a electric shower would be greater than having plumber fix low hot water pressure.
Assuming you have access to plumbing pipes, and this is not apartment building.

Jan 05, 2013 | Water Heaters

1 Answer

Low water pressure


Hi Bob,

You can determine if the tank is the problem by connecting a garden hose to the drain that is provided on most water heaters. Before doing this, be sure to shut of the electrical supply to the heater - otherwise you can damage heating elements if an electric type or waste fuel by heating an empty tank if a gas / propane fired type.

If you get a slow flow out of this drain, it means that somewhere in the cold water supply side to / in the tank - there is a problem. Inside the tank, the cold water is delivered by a "dip tube" that distributes the cold water to the bottom in the tank. Dip tubes are used in both electric and gas / propane fueled heaters. Here's a cut away view of a typical tank:



6_29_2012_9_57_32_pm.jpg

If the tube is clogged, or there is build up, scale or debris in the supply (cold water) side of the heater, flow rates will suffer. Likewise, if there is a problem with the output of the tank, it will directly affect flow as well.

If you get a good flow rate from the drain, then the issue is going to be on the hot water output side of the heater. Again, the same build up, scale, debris issues on the hot water out put pipe will cause problems with flow. Typcial tanks do not have dip tubes for the hot water side of the tank - as taking hot water from the top of the tank is most desireable and is furthest away from the cold water that rushes in to make up the hot hot water going out.

There's nothing really in the tank itself that can cause issues with flow outside of the dip tube, and piping to and from the tank.

Good luck!

Jun 29, 2012 | Water Heaters

1 Answer

Our rheem pronto tankless rutg-74xp red light will come home indicating hot water and stay on about 2 minutes and then turns off we have turned off and back on and let water run for 5 minutes and will come...


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

List of causes MIGHT include one of following:
Bad household circuit breaker that powers electronics, or loose wire inside outlet where tankless plugs in.
Tankless fuses and control board.
Water flow rate too low. Minimum .8 gallon required (depending on model)
Tankless inlet filter clogged.
Household aerators clogged at faucets.
Crossover at single-handled faucet
If installed, there can be crossover at mixing valve.
Faulty household check valve, including check valve on re-circulation system if that system is installed.
Restriction in household water line, such as clog at elbow.
Unequal pressure in household hot and cold lines, caused by restriction in hot line. When single-handled faucet turns on, the cold water pressure is higher so hot does not flow and tankless will not turn on.
Loose wire connection inside tankless.
Unit temperature set too high.
Unit temperature set too low.
Water temperature is very hot coming out of tap, so more cold is added, but that reduces amount of hot water flow, so tankless turns off because flow rate is too low.
On some tankless, if water is preheated by solar or other indirect source, the burner will not activate.
High mineral content in water > delime tankless yearly
Misaligned temperature sensor
Low gas pressure. Wrong type of gas. Undersized gas line.
Too many faucets on at same time.
Faulty tankless water valve. Water valve stuck.
Fluctuating household water pressure, for example MUD and PUD district water pressure problems or water well pressure.
Faulty household pressure reducing/regulating valve if installed.
Faulty household pressure tank, if installed -or- pressure tank needs to be installed.

Apr 24, 2011 | Rheem RTG-74PVN-2 Natural Gas Pronto Whole...

1 Answer

Hot water is spraying out the plastic coupler that comes out of the water heater up to the pipe. Want to know if there is any way to fix this problem in expensively.


First thing to do is wrap rag or towel around spraying joint to localize water.
Next, turn off power to water heater.
If gas, rotate knob to pilot so pilot light stays lit but burner does not come on
If electric, turn off circuit breaker.
Close cold-water shut off valve above tank.
Open tub valve to release pressure on water heater.

Wait for water to cool before working on water heater to avoid high pressure scalding water.
When finished, make sure tank is full of water and water comes out of tub valve before turning on power.

Water heater should not have plastic couplings.
I can't see your problem exactly, but water heaters have 3/4" nipples coming out of top.
Easiest solution is use flexible connectors from Lowes or Home depot.

geno_3245_158.jpg geno_3245_159.jpg

Flexible connectors are 24" or 30" long and have 3/4" nut on each end, so disassemble existing pipes using pipe wrench.
Lowes and Home depot can help you select appropriate pipe >> take several phone-photos of your pipes to home center so they can see your problem precisely.
Attach 3/4" male adapter on end of pipe.
Attach flexible connectors between pipe and water heater nipple.
Cold water line has shut off ... make sure this attached to nipple marked cold.
Make sure hot pipe is attached to nipple marked hot.
Use teflon tape on threads.

Add a comment if you need more help.

Dec 09, 2010 | Rheem Water Heaters

1 Answer

I have a hotpoint hot water heater it's about 6 years old. When I turn the hot water on it runs very slowly the water pressure is very low and it's like this throughout the house how do I fix this problem...


You have clog in the water line.
Since all hot water pipes are involved, clog is probably near water heater.

Buy pressure gauge at hardware store that threads onto hose connection.
Brady BTG 100 at Amazon
Picture of gauge

Check outdoor pressure for baseline pressure in your home.
Turn off electricity to hot water heater for an hour or two so there is not scalding water.
Open drain valve on water heater to see if water heater is clogged with sediment.
http://waterheatertimer.org/Water-heater-will-not-drain.html

Put pressure gauge on drain valve and compare with outside pressure.
Open hot water spigot on bathtub and see if tank pressure drops ... if tank pressure drops significantly with bathtub spigot on, then clog is on incoming cold water before tank, and could be on outgoing hot water pipes too.
If tank pressure stays about the same, then clog is on outgoing hot water pipes.

Clog can be sediment caught in cold water shut off valve located above tank. Open and close valve and test pressure again. Take apart incoming cold water pipes above tank and check for sediment. Replace valve. Look at condition of cold water nipple on top of tank.

Sediment caught at hot water elbow near tank.
Sediment can fill up old pipes. Take apart hot water pipes above water heater and see condition.
Look at condition of hot water nipple on top of tank.
You may have to take apart pipes up to first or second elbow.

Pipes can decay at joint where copper pipe connects to galvanized pipe. Check for copper to galvanized connections on cold or hot pipes and replace section of galvanized pipe. Copper pipe will probably be good, the galvanized pipe will deteriorate. Replace copper-to-galvanized joint with 3/4" non-conducting union from hardware store

Dec 06, 2010 | Water Heaters

1 Answer

Boiler recycling when in DHC mode and water alternates hot then cold, back to hot every few minutes. Could it be pressure / flow rate.


First check pressure over 1 bar ok then-
1. check flow - is it adequate - a little less than the cold tap ok then -
2. does the boiler initially fire up on low hot flow but alternate as u say
If answers are 1. no but 2. yes then check for a furred up secondary heat exchanger
if 1. yes but 2. no [that is the water not the heating] goes hot / cold and if the boiler goes out when the water goes to cold then it's the diverter valve, either to replace or if it is one which has a internal diaphragm-replace that

Nov 25, 2009 | Water Heaters

2 Answers

No water pressure in bath tub after turning off hot water heater


It could be back flowing into the hot water heater tank which is not full because of the leak. Even though the valve is closed on the cold water entry side, there is probably no valve on the exit side. That is how it is returning to the tank.

Sep 14, 2009 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

2 Answers

No hot water when heating tempreture reached.flow switch is operating, power at flow switch terminals on pcb (three wires),? but when working hot water runns for ever and heating runs ok too untill the...


I have a triton opal shower.

I turn shower on low pressure and cold water. then no low pressure and piping hot water for a very short time then low pressure and cold water.

I've changed the solenoid and the little black plastic ball.

Help !

Aug 21, 2009 | Water Heaters

1 Answer

Hot water taps and showers pressure very low cold taps ok


there is a little cap on the hot and cold side above the shut off valves, turn the water off at these valve and take the caps off there are filters in there clean them off and reinstall them that should take care of the problem, you might want to flush the tank while your at it hook a hose to the hot side connector and run it out side or to a sump pump then turn on the cold water and flush it out you can also reverse this procedure by doing it on the cold side

May 24, 2009 | Rheem Tankless water heater for 1-2...

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