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Pilot light is on, but no hot water. thermostat is turned all the way up to HOT.

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My gas hot water systems pilot light is on but yhe burners dont ignite when i put the hot water on,so in turn im not getting any hot water

Posted on Dec 19, 2009

  • lacenz Dec 19, 2009

    thanks for the advice

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You say the pilot light is on, but is the burner on? If so and the burner is running and no hot water you may have a plumbing leak somewhere on the hot water side under the house or under a slab.

Posted on Sep 10, 2009

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Posted on Jan 02, 2017

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SOURCE: gas hot water tank, pilot light

Look inside the water heater when it is heating the water, the flame should be blue. If it has yellow tips on the flame, it needs an adjustment to the air shutter. There is a nut on this air shutter to make this adjustment. This adjusts the air gas mixture. You may first try just simply tapping on the burner lightly to loosen any debris that may have built up and vacuum it out. MAKE SURE YOU TURN OFF THE GAS BEFORE CLEANING THE BURNER!! Also, check for drafts that may be blowing out your pilot light, Furnace register or outside drafts on windy nights. Some water heaters have an automatic shut down if the water heater gets too hot, so don't have it set to its hottest setting. Most water heaters only last about 10 years or so, It could be you are ready for a new one....Joe

Posted on Dec 16, 2008

meBNme
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SOURCE: i have no hot water, the pilot light is on help!

First try turning the knob all the way to "pilot" then turn it all the way to its hottest setting.

It sounds like the thermostat/sensor is stuck. This may jar it into working again.

Also look for any leakage or water around the burner.

You will probably have to replace the gas valve in the near future.

Also try tapping the side of the gas valve.

Posted on Jan 23, 2009

  • 297 Answers

SOURCE: I have a 6 gal Atwood hot water heater. I can

Kenny did you change the thermo coupler?

Posted on Jul 14, 2009

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1 Answer

Pilot light is working but cant get heating or hot water


If your pilot is lit, and you have valve turned from pilot to ON, and thermostat is up on warm or hot, and you still don't have main burner on, then you have bad gas valve (the square thing with temperature and on/off/pilot). These unscrew from water heater and can be replaced, but keep in mind that they go directly into tank, so shut off water and drain unit first!

Jan 06, 2015 | Water Water Heaters

Tip

How to Change the Gas Valve and Thermostat on a Hot Water Heater


<p>If you are having<b> trouble with the temperatures</b> of your <b>gas hot water heater</b> fluctuating too much, or after <b>changing the thermocouple</b> of your gas <b>hot water heater</b> then you may need to change the complete <b>gas valve and thermostat assembly</b>. Also if you have changed the <b>thermocouple</b> and the pilot still will not stay lit, then the gas valve could be bad or the <b>ECO (Emergency Cutout)</b> may have activated and is open. This is a onetime device and cannot be replaced.<br /> <p><br /> <p>These instructions are for the older style <b>gas valve and thermostat combination</b>. These commonly have a large red knob that adjusts the temperature of the water. Also note that the burner tube nut for <b>natural gas</b> is right hand thread, but if you have <b>LP or propane gas</b> the burner tube nut is left hand thread.<br /> <p><br /> <p>The newer <b>gas valve thermostat combinations</b> that have come out recently are similar, but they have a well in the tank that the sensor slides into. The assembly is held fast with a set screw. With this type of <b>gas valve and thermostat unit </b>the tank does not need to be drained, but most of the rest of the change out is similar.<br /><br />To change a <b>gas hot water heater thermostat</b> you will need to first buy a new gas valve for your <b>hot water heater</b>. The <b>gas valve</b> and the <b>thermostat</b> are integrated into one unit.<br /><br />To <b>replace the thermostat on a gas hot water heater</b> you must follow these procedures....<br /><br />1. Turn off the incoming water and<b> drain the hot water heater</b>.<br /><br />2. Remove the <b>pilot tube</b>, the <b>burner gas tube</b> and the thermocouple from the gas valve. Turn off the <b>gas line</b> and remove from the gas valve.<br /><br />3. Get a <b>pump pliers</b> or a<b> wrench</b> in behind the gas valve and turn the whole assembly CCW to remove it from the tank.<br /><br />4. After applying pipe dope or tape to the new gas valve threads, turn the new gas valve into the tank by turning in a CW direction. Be careful not to damage the small wires to the <b>ECO</b>. They are the little red wires on the back. If you break them the assembly is irreparably damaged.<br /><br />5. Reinstall the gas line, thermocouple, burner tube, and the pilot tube to the gas valve.<br /><br />6. Fill tank with water. Make sure to open a <b>hot water faucet</b> and <b>purge all air from the tank.<br /><br /></b>7. <b>Check for leaks</b> where the gas line hooks up with soapy water.<br /><br />8. Relight pilot light and check operation.<br /><br />9. Set the new temperature setting to a medium setting and then adjust the temperature to your liking from there and adequate time for heating completely<br /> <p>

on Feb 25, 2011 | Water Heaters

2 Answers

I have a 650 delta thermostatic gas combination control on a Rheem hot water heater that won't turn to to the proper pilot or off position to relight it. We have looked everywhere for trouble shootin


Jennifer, the instructions posted by Rheems on the heater are wrong. You must first rotate the dial clockwise, use force (in our our case) to get the pilot to its position. The folks at Rheems are nuts not to check their instructions before printing them and plastering them on their hot water tanks. Disgraceful, period.

Mar 30, 2014 | Water Heaters

1 Answer

Reliance 606 natural gas water heater - model #640YORT - water does not stay hot. pilot has to be clicked to heat and then u can use hot water til tank empty and it will not continue to heat water.


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

Aug 09, 2011 | Reliance Natural Gas Water Heater Control

1 Answer

Water not hot even thermostate turned to high. The pilot light is on. Shoulder I be able to visualise the burner actually firing.,or hear it firing. I can see the pilot light clearly. Please help


If you have cold water now, you should hear the unit fire up and run while heating water. Proceedure would be; pilot is lit with thermostat at pilot setting. Once pilot is lit, you turn up to desired temp setting and you should hear the heater running. Depending on lighting, you should be able to see it slightly brighter and may flicker some while heating.

Apr 25, 2011 | Rheem Water Heaters

1 Answer

I have a reliance 501 propane gas water heater how do i change a thermostate


Hi,

To change a gas hot water heater thermostat you will need to first buy a new gas valve for your hot water heater. The gas vaive and the thermostat are integrated into one unit.

To replace the thermostat on a gas hot water heater you must follow these procedures....

1. Turn off the incoming water and drain the water heater.

2. remove the pilot tube, the burner gas tube and the thermocouple from the gas valve. Turn off the gas line and remove from the gas valve.

3. get a pump pliers or a wrench in behind the gas valve and turn the whole assembly CCW to remove it from the tank.

4. After appliying pipe dope or tape to the new gas valve threads, turn the new gas valve into the tank by turning in a CW direction. Be careful not to damage the small wires to the ECO. They are the little red wires on the back. If you break them the assembly is irreparably damaged.

5. reinstall the gas line, thermocouple, burner tube, and the pilot tube to the gas valve.

6. Fill tank with water. Make sure to open a hot water faucet and purge all air from the tank.

7. Check for leaks where the gas line hooks up with soapy water.

8. Relight pilot light and check operation.

9. Set the new temperature setting to a medium setting and then adjust the temperature to your likeing from there and adequate time for heating completely.

heatman101

Feb 23, 2011 | RELIANCE ELECTRIC WATER HEATER

2 Answers

No hot water from brand new heater


check your thermostat's,be sure they are turned up,tighten all (check),elect' connection's.

Apr 27, 2010 | Reliance & 50gal Electric Water Heater

1 Answer

M# 640HORT4 s# H07A090378---MY Pilot Light wont


Hi,
First thing is to replace the thermoscouple. When you light it you get it a bit hotter then normal. You turn on the main burner which keeps it hot. Then when it goes back to just pilot the flame is not hot enough to hold the pilot valve in.
Replace the thermocouple and you will be fine...

heatman101

Mar 26, 2010 | Water Heaters

1 Answer

No hot water


If the pilot light stays on, the thermocouple and pilot flame are good. If you turn the control to "on" and turn up the thermostatic control knob to call for heating and get nothing else then the control (gas valve, thermostatic control) is bad. The control can be replaced - they are mostly generic except for gas type - but they are not cheap and if the control is bad the tank is probably not far behind (changing the control could cause it to leak). Unless the water heater is less than 3-5 years old, replace the whole thing!

Please rate my answer!

Mar 18, 2009 | Bosch Water Heaters

3 Answers

I have no hot water, the pilot light is on help!


First try turning the knob all the way to "pilot" then turn it all the way to its hottest setting.

It sounds like the thermostat/sensor is stuck. This may jar it into working again.

Also look for any leakage or water around the burner.

You will probably have to replace the gas valve in the near future.

Also try tapping the side of the gas valve.

Jan 23, 2009 | General Electric GE SmartWater Household...

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