I have a reliance 606 series water heater. The pilot light won't stay lit after it goes through a heating cycle. I have brushed cleaned the flame arrestor and the LOD screen and I have sandpapered

Reliance Water Heater Literature ' Owner's Manuals ...

www.reliancewaterheaters.com/resources/instruction-manuals

Welcome to the Reliance Water Heaters Owner's Manual and Installation ... 9 40 EKRT - 40 Gallon Tall Self-Cleaning Electric Water Heater - 9 Year Warranty . ..... 10 50 DHPST - 50 Gallon Electric Heat Pump Water Heater - 10 Year Warranty .

How to light the pilot on a Reliance 606 water heater ...

? 3:27
https://www.youtube.com/watch?v=VU2PsFVd2ug
Jul 12, 2011 - Uploaded by kilroywashere123
How to light the pilot on a Reliance 606 water heater ... How to fixwater heater, will not stay lit - sealed combustion no hot water - Duration: ...

Reliance Water Heaters - Consumer Affairs

www.consumeraffairs.com > Homeowners > Bath & Plumbing

Rating: 1.6 - ‎84 votes
I purchased a Reliance 606 water heater in 2010. ... That they don't TELL you there's areset button or that I'm having conspiracy thoughts ... After several attempts, I was able to relight it. ... It's heading to the junk pile and I will purchase a new reliable (NotReliance) ... Checked breaker and changed breaker still no hot water!

check that the flame sensor is clean. It would be a stiff piece of wire that would sit right over where the pilot lite is. If it is dirty...it wont sense if there is a flame....and if it dosnt sense a flame....it wont let the pilot lite to turn on.

1) Reliance is AO Smith-American, and air intake screen located on bottom of water heater. Clean air intake. Replace thermocouple. First two digits of serial number are year of manufacture.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-to-replace-thermocouple.html

2) Add comment and say what you tried so far.
Include age of water heater.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Reliance water heater?
Thermocouple is good if the pilot stays lit continuously.

501 is older model. Unknown if this unit has FVIR protection and sealed combustion chamber or open air intake on front of unit.
http://waterheatertimer.org/pdf/Reliance-2006-Service-Handbook.pdf

With FVIR protection:
Get more fresh air to the unit.
Clean the flame arrestor screen.
Test and replace the thermocouple:
http://waterheatertimer.org/How-to-test-water-heater-thermocouple.html
Inspect and clean burner and combustion parts
Test gas pressure, bleed air out of gas line.
Replace gas control valve.
Test draft air by lighting match and see if smoke is pulled into the vent pipe at draft hood on top of tank.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Gas water heaters don't have elements, so I am confused about what type water heater you have..
Look on the side of tank for the label.
Find the brand, and type. Does it show BTUs? Or does it show wattage?
Then re-post question with this information, for best possible answer.
Also post question on Tank forum.
http://www.thetankatwaterheaterrescue.com/forums/forum3/

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Make sure thermocouple tip is seated inside the burner flame.
Make sure thermocouple is not overtightened. Finger-tight + 1/4 turn.
If the pilot lights, then ECO energy cut off is not tripped, but gas control valve might be bad.
Check color of pilot flame: it should be strong and clear blue.
If pilot flame is weak, or color of flame is yellow-orange: Clean pilot orifice and burner and combustion parts on yearly basis.
Clean air intake screen if applicable.
Increase air supply to water heater. Open a window and see what happens.
Check for adequate draft going up chimney using match under vent hood to see if smoke drafts immediately upwards.
Bleed air out of gas line.
Check gas pressure.

Open following links for troubleshoot resources:
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
http://waterheatertimer.org/pdf/Pilot-outage-troubleshooting.pdf
http://waterheatertimer.org/pdf/Vent-spillage-test-atmospheric-gas-water-heater.pdf
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

If I understand correctly, the pilot light is not staying lit.
You light the pilot and water in the tank reaches temperature.
Once hot water is gone, then pilot light has to be lit again.

Gas pressure is good, and gas is flowing.
Thermostat is working at high end because it cuts off heating.
Vent is working because tank heats up.
Air intake is working.

Gas control thermostat might not be reading low temperature. Replace gas control valve.
Pilot tube might be dirty. Clean burner parts and combustion chamber, and air intake, and vent.
Backdraft might be blowing out pilot. Check for constant updraft by running water heater 5 minutes, and then light match under vent hood and see if smoke goes up.
Very hot air can put out pilot, especially when water heater located in attic. Add ventilation.
Improper vent might have water dripping back down into combustion chamber and putting out pilot light and rusting out the parts. Inspect for rusted parts and water.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf

Can be gas control valve. Or possibly the burner parts and air intake need yearly cleaning.
Open following links for example illustrations and useful troubleshoot resources:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Flame-Arrestor-Screen-Cleaning.pdf
http://waterheatertimer.org/pdf/How-to-clean-combustion-chamber.pdf

Your manual will have additional information:
http://www.reliancewaterheaters.com/lit/om/g606.html
http://www.reliancewaterheaters.com/lit/om/manuals/186486-002.pdf

replace the thermocouple assy in the burner area

The Reliance 606 has an enclosed thermal couple. Before you try taking that assembly apart take a wire brush to the bottom opening directly under the burner. There is a metal filter on the very bottom of the water heater. It could be that the filter has gotten filled with dust or animal hair. It took a serviceman 2 days to figure this out for me. The water heater has to have good airflow through that filter to work well.