Question about Rheem Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm

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U have a rheem water heater the year is it was manufactured was 2000. the pilot is lit but i still am getting no hot water. what can i do to get the burner to kick on?

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Call service technician, and open following link for Rheem troubleshoot resources.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

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Posted on Apr 05, 2011

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Why wont the pilot light on my hot water tank stay lit


there is no pilot- it is lit with a ignitor. If you have problems the unit needs a service cleaning of the flame sensor rods.

Aug 19, 2014 | Rheem Tankless Hot Water Heater...

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Rheem rp4036m


Under the gas valve is a removable panel. On models of that era there should also be a second panel behind the first. remove both.

the pilot light should be clearly visible.

If no pilot, turn the gas valve to OFF. wait 60 seconds. locate the tubes from the gas valve to the pilot location. turn the valve to pilot, and with a long match or grill lighter lit, place flame at the pilot location and press down on the pilot button beside the main valve.

pilot should light. If not shut off the gas and call a technician. If yes, hold the pilot button for 60 seconds, then slowly release. Pilot should stay lit. If not, shut off gas and replace thermocouple, start relight sequence over. If pilot stays lit, replace inner cover and adjust temp to 120 deg. If heater fires up, replace outer cover. Done.

If heater does not light, replace gas valve or entire unit. Water heaters have a limited life expectancy, and if my recollection is correct your unit is 10yrs past warranty.

Dec 04, 2013 | Water Water Heaters

1 Answer

Rheem 22V50F1 pilot won't stay lit. Changed thermo couple & it lit, ran then went out. Let it sit overnight & it lit, ran then went out. What next? p.s. The unit is 5 years old. Thanks


If pilot lights and flame is robust and clear blue, and pilot goes out later, then some suspects can be excluded: air in gas line, low gas pressure, thermocouple is overtightened (finger-tight + 1/4 turn), thermocouple not positioned correctly in the flame, dirty pilot tube.
If flame is yellowish and small: then clean pilot tube and combustion parts.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#clean
Remaining suspects can include: air in gas line, low gas pressure, bad gas control valve, tight house so household vent fans pull air down water heater vent that blows out pilot, hot attic with inadequate ventilation, water dripping down vent.

Open following links to read troubleshoot resources.
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

Aug 16, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Cannot get the pilot light to stay lit. Replaced the thermocouple and the problem still exists


Burner parts need yearly cleaning, air intake needs periodic cleaning, burner parts cannot be exposed to trace amounts of chemical without damaging parts, no water should be dripping down from vent, vent should be checked for updraft, ample combustion air is required especially in closed basements, tight houses, and hot attic, bleed gas line to remove air, check that gas control thermostat is functioning.
Open following links for pilot light help:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf

Aug 07, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

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I have a 5v40 hot water heater. I lite the pilot and burner work fine as long as i have the door open to get air. close the door and the pilot lite and burner goes out. starved for air. there looks like...


Probably don't have good news for do-it-yourself repair.
Richmond is Rheem.
Rheem gas water heater manuals say to call service technician if the combustion chamber FV sensor has tripped, or if water heater has flooded.
FV trip requires part replacement, and flooded heater has to be replaced.

I read one thread that might help:
http://www.diychatroom.com/f7/rheem-hot-water-heater-pilot-burner-not-staying-lit-65755/

I posted same question on pro water heater forums, and the plumbers will not man up and tell how to replace the part. They cite legal issue because gas water heater is dangerous, period.
They have a point, but I am still looking for a good DIY answer.

If repairs are more than $330, then buy a new heater at local box store and install yourself same day.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Upvote the help.
And 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.

May 17, 2011 | Audiovox Richmond 6G40-36F 6-Year Tall Gas...

3 Answers

I have a Rheem PG50T9A gas hot water heater. We had hot water this morning. When I came home the pilot light was out and won't stay lit. Any ideas?


Hopefully just the thermocouple. The thermocouple is the small rod right next to the pilot light. The flame on the pilot heats up the thermocouple and keeps the gas valve on. You can replace it yourself. The thermocouple will be connect by a small nut on the underneath side of the valve, and you will have to pull the thermocouple out of the pilot assembly. Not an expensive part, you can get it at any hardware store. Hope this helps you .

Apr 21, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

I have a Rheem 40 gal. tank that is leaking water front the top where the vent stack is. It is pouring out. Can it be repaired?


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

Dec 20, 2010 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Pilot light won't stay lit in gas water heater


If this heater was manufactured after 2003 it has a FVIR filter. It is usually located on the bottom of the heater and this is where it draws air into the combustion chamber. Check to see if it is clogged with dust or lint.
because the heater probably has a sensor, it is not getting enough air and shutting off. hope this helped.

Mar 17, 2010 | Rheem 40 Gallon FVR NATGAS Low WATER...

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