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I have a 606 reliance water heater the pilot will lite but when time to turn knob to on it goes off pls help i cant afford a new water heater right now!!!

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  • Water Heaters Master
  • 6,674 Answers

Do you know what and where the thermocouple is ? Small probe sitting above pilot flame normally. It should be checked, and should not be expensive to replace. If not familiar with all this, get back to me and I'll explain more thoroughly. Is this a repair your going to try yourself, or just want advice before calling repairman?

Posted on Jan 14, 2013

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Posted on Jan 02, 2017

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  • 25 Answers

SOURCE: Model #606 640nort Reliance 30gal gas water heater

this is either the thermocouple lead or the uni control i would replace the thermocouple leed first, these parts can't be repaired they have to be replaced

Posted on Jul 14, 2010

  • 1 Answer

SOURCE: Pilot won't stay lit in Reliance 606 gas water heater

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.

Posted on Sep 29, 2010

  • 494 Answers

SOURCE: My pilot light goes out irregularly it's a

If you still have your owner's manual, you will need to call the manufacturer. They will need the model # & serial #. This particular brand has a fine mesh filter screen on the bottom (below the burner) that gets clogged and causes irregular pilot outages. They have a recall in which they will send you a new burner assembly with a reset switch built-in to it. They will send it to you for free, but you will need to hire your local propane co (at your expense) to install it and also clean the filter while they have the burner assembly out. Good luck. Douglas

Posted on Jan 06, 2011

packrat1948
  • 528 Answers

SOURCE: pilot hard to lite when

The thermocouple has gone bad or in this case is going bad to the point that it is useless.

The thermocouple is the pilot's, well, co-pilot! It is the electronic device that senses if the pilot flame is hot enough to ignite natural gas or propane fuel to the burner. If the thermocouple thinks it's safe, then it keeps open the main gas valve located in the pilot assembly. If the thermocouple does not sense enough heat from the pilot flame (such as when the pilot is out), then the thermocouple shuts off the gas valve to the burners.
How the Thermocouple Works
So what is this thing and how does it work? Well the thermocouple (technically called a thermocouple junction) is a device that contains two metal wires welded at the ends and placed inside a protective metal case. The thermocouple sensor is found at the business end of the pilot flame and is designed to be placed in the hottest part of the flame. The other end is connected to the pilot valve body. As the thermocouple heats up, it produces a small amount of electricity and when it gets hot enough from the pilot, send a signal to open the gas valve by using a solenoid operated by a 24 volt transformer. The thermocouple calls the shots, and by converting heat to an electrical signal, it allows the gas valve to open or close. Once the gas valve is open, gas is then constantly supplied to the pilot and as required for the gas burners (as called for by the thermostat). If the pilot goes out, then the thermocouple gets cold and produces no electric signal to open the gas valve's solenoid and the gas valve shuts off the gas supply to the pilot and burners. Neat huh?

Posted on Feb 04, 2011

SOURCE: I have a Reliance 606

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

Posted on Jul 26, 2011

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Hot water tank wont heat water, how do you relight or resat, its a reliance self cleaning 808


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 .

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? 3:27
https://www.youtube.com/watch?v=VU2PsFVd2ug
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Reliance Water Heaters - Consumer Affairs

www.consumeraffairs.com > Homeowners > Bath & Plumbing

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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!

Dec 28, 2015 | Reliance Water Heaters

2 Answers

What pilot light assy. do I need to buy for model# 640y0rt4, water heater ??? please wont stay lit


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.

Jun 03, 2015 | Reliance 606 Series 40 Gallon Natural Gas...

1 Answer

Reliance 606 water heater was in flooded basement had few inches of water up to it now wont light. What to do?


This could be a tough one without being able to examine it. First, have you precisely followed the relighting instructions printed on the heater (turn the knob to "pilot," hold down the button, etc.)? One other thought: the gas pressure to the pilot flame is very low - if some water got into its little supply pipe it could keep gas from getting to the pilot burner device. You would have to disconnect the pilot tube from the gas controller valve and blow it clear, then try again. Dealing with this type of gas problem can create dangerous conditions if not done properly. If water got into the gas controller valve (the one with the knobs and buttons) it will have to be replaced. If unsure, consult a plumber.

Apr 20, 2013 | Reliance & 50gal Electric Water Heater

1 Answer

Reliance 606 propane pilot won't stay on when i begin to turn on.its like ite not getting the message or signal,HELP PLEASE


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.

Jan 05, 2013 | Reliance & LP Gas Water Heater Control

1 Answer

Reliance 606 Hot water Heating element (Pilot light) won't stay lit


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/

Aug 12, 2012 | Water Heaters

1 Answer

How to change bad thermocouple on reliance gas hot waterheater reliance 606


it is important to turn off

the gas supply to the water heater at the manual gas shut-off

valve. This valve is typically located beside the water heater.

Note the position of the shut-off valve in the open/on position

then proceed to turn it off.

2. On the lower front of the water heater locate the combination

gas control valve/thermostat. Depress and hold

the lock tab located under the gas control knob on the right.

Rotate the gas control knob on the combination gas control

valve/thermostat clockwise until "OFF" aligns with the mark on

the front of the gas valve. Once the gas supply has been shutoff,

remove outer door. 3. Using a 1/4" nut driver or socket loosen the two screws securing

the manifold door assembly until they are free. Do not

totally remove the screws and plastic retainer washers from

the manifold door. The screws and retainer washers will be

needed to reattach the manifold door. 4. In this step, the thermocouple, manifold tube, pilot tube and

igniter wire will be disconnected from the combination gas

control valve/thermostat. Using a 7/16" wrench

disconnect the thermocouple (left-hand thread) and pilot tube

(right-hand thread). Using a 3/4" wrench disconnect the manifold

tube (right-hand thread). Carefully pull the igniter wire from

the igniter button.

5. Grasp the manifold tube and push down slightly to free the

manifold tube, pilot tube, and thermocouple from the combination

gas control valve/thermostat. when installation is complete and gas is back on, You should be able to relight the pilot and the functionality of your gas hot water heater should be restored.

Nov 27, 2010 | Reliance Natural Gas Water Heater Control

3 Answers

Pilot won't stay lit in Reliance 606 gas water heater


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.

Feb 13, 2010 | Reliance & 50gal Electric Water Heater

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