Oven burner doesnt light

Sounds like it is working as designed. Igniters should last fro several years but can crack at any time.

The oven control supplies voltage to the oven igniter/gas valve circuit. When the oven control is set to Bake, voltage is supplied to the oven igniter which should glow bright red to almost white hot. Once the igniter comes on and begins to glow it must pull enough current to cause the gas valve to open so the burner can ignite from the igniter. I added an image below with the theory of operation. Click this link:--http://media.fotki.com/1_p,swbbsqrsgstsqkkxgtqsskgwtqkq,vi/wrgtsbrktxwdfwfbgdg/1/1303472/5961857/image5576034710104836299img-or.png

----Open the broiler drawer and then set the oven control to bake and watch to see if the glow bar igniter glows or not. If it does not glow, the failure could be a broken Igniter, failed oven control board or gas valve. If the igniter is glowing red, then it can be possible that gas valve is faulty. To see how igniter looks. See the fig below:--

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To order this part click the link below:--

http://www.repairclinic.com/PartDetail/Hot-Surface-Glow-Bar-Igniter/1990?modelNumber=911.30469894

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Also to confirm, check to see if the igniter is getting 120 volts when it's turned on. If it gets 120 volts, then your safety gas valve is bad because it's not letting the neutral go through. Otherwise, if it's NOT getting 120 volts, your control board shorted out and you need a new control board.
But as you mentioned that control board is replaced. So igniter should get 120 volts. If valve is faulty. But if igniter is not glowing then its faulty igniter confirmed.

To see how gas valve looks, please click the link below:---

http://www.repairclinic.com/PartDetail/Gas-Safety-Valve-Assembly/251898

In most of the cases the igniter is faulty, because gas valve getting faulty is very rare. But still getting the voltages checked, will confirm. These will help. Thanks. Helpmech.

Hello there:
It doesn't bake Bake igniter
When the bake igniter becomes weak or burns out, your oven would not bake. The bake igniter is usually mounted on the oven burner. It's about 1 inch by 4-8 inches (depending on the model), and comes in round or flat styles. If you don't see the igniter glow at all, it's probably burned out. Replace the igniter if found defective. Note: one of the exceptions could be that your oven is set to automatic mode instead of manual. If this is the case, set your oven to manual mode and check again.

If the bake igniter glows red and not bright yellow or white, it is probably because it is too weak. When this happens, the safety valve would not let the gas out into the oven burner. A weak igniter must be replaced.

A faulty igniter is probably the most common cause, however there are others:

-- defective thermostat
-- defective selector switch
-- defective gas safety valve

If you are certain the igniter is ok, it might be a good idea to call a professional appliance technician.

Need a new oven igniter? Click here for most common oven igniters or enter your oven model number in our PART SEARCH. ^ top It doesn't broil Broil igniter
When the broil igniter becomes weak or burns out, your oven would not broil. The broil igniter is usually mounted on the oven burner. It's about 1 inch by 4-8 inches (depending on the model), and comes in round or flat styles. If you don't see the igniter glow at all, it's probably burned out. Replace the igniter if found defective. Note: one of the exceptions could be that your oven is set to automatic mode instead of manual. If this is the case, set your oven to manual mode and check again.

If the broil igniter glows red and not bright yellow or white, it is probably because it is too weak. When this happens, the safety valve would not let the gas out into the oven burner. A weak igniter must be replaced.

A faulty igniter is probably the most common cause, however there are others:

-- defective thermostat
-- defective selector switch
-- defective gas safety valve

Read more: http://www.appliancepartspros.com/repairtips/repairtips_range_oven.aspx#ixzz1CgFQ7lBJ
http://www.appliancepartspros.com

Possibly the ignitor for the main oven burner has failed--

An observation question:

When the Broiler 'lights' and comes on, do you notice the ignitor glowing bright, before the gas valve (to the Broiler) opens, and you get the Broiler lighting---

Now-- for the main burner to come on, -- there has to be a similar bright glow from the MAIN BURNER ignitor, before its main burner gas valve can open-- No Ignitor?-- No ignition, and not Main Oven burner!

Let me know what you need from this point on --

Mack B

When the bake igniter becomes weak or burns out, your oven will not bake. The bake igniter is usually mounted on the oven burner. It's about 1 inch by 4-8 inches (depending on the model), and comes in round or flat styles. If you don't see the igniter glow at all, it's probably burned out. Replace the igniter if found defective. Note: one of the exceptions could be that your oven is set to automatic mode instead of manual. If this is the case, set your oven to manual mode and check again.

If the bake igniter glows red and not bright yellow or white, it is probably because it is too weak. When this happens, the safety valve will not let the gas out into the oven burner. A weak igniter must be replaced.

A faulty igniter is probably the most common cause, however there are others:

1. Defective thermostat
2. Defective selector switch
3. Defective gas safety valve
4. Defective gas valve coils

When the bake igniter becomes weak or burns out, your oven will not bake. The bake igniter is usually mounted on the oven burner. It's about 1 inch by 4-8 inches (depending on the model), and comes in round or flat styles. If you don't see the igniter glow at all, it's probably burned out. Replace the igniter if found defective. Note: one of the exceptions could be that your oven is set to automatic mode instead of manual. If this is the case, set your oven to manual mode and check again.

If the bake igniter glows red and not bright yellow or white, it is probably because it is too weak. When this happens, the safety valve would not let the gas out into the oven burner. A weak igniter must be replaced.

A faulty igniter is probably the most common cause, however there are others:

-- defective thermostat
-- defective selector switch
-- defective gas safety valve
-- defective gas valve coils

The way it works is the igniter gets voltage signal from the control and will start to glow. The gas valve for the burner and the igniter are wired on the same circuit. When the igniter starts to glow it takes all the voltage from the circuit. As the igniter increases in temp the resistence changes and the voltage starts to travel to the gas valve. Once the gas valve registers 3 to 4 volts it will open allowing gas to the burner for ignition. The igniter needs to reach approx 2200 degrees for this to happen. So it could be the igniter or the gas valve. The igniter should test approx 500 to 700 ohms with a ohm meter. The gas valve could also be sticking. If the igniter is glowing bright and you tap the gas valve with a wrench and it comes on then the gas valve is sticking and needs replacement(as long as the igniter tests good)...Hope that helps.

If the bake igniter glows bright grange and not bright yellow or white, it is probably because it is too weak. When this happens, the safety valve will not let the gas out into the oven burner. A weak igniter must be replaced.

When the bake igniter becomes weak or burns out, your oven would not bake. The bake igniter is usually mounted on the oven burner. It's about 1 inch by 4-8 inches (depending on the model), and comes in round or flat styles. If you don't see the igniter glow at all, it's probably burned out. Replace the igniter if found defective. Note: one of the exceptions could be that your oven is set to automatic mode instead of manual. If this is the case, set your oven to manual mode and check again.

If the bake igniter glows red and not bright yellow or white, it is probably because it is too weak. When this happens, the safety valve would not let the gas out into the oven burner. A weak igniter must be replaced.

A faulty igniter is probably the most common cause, however there are others:

-- defective thermostat
-- defective selector switch
-- defective gas safety valve
-- defective gas valve coils(This will be the next possible issue if the igniter is functional)

When the bake igniter becomes weak or burns out, your oven would not bake. The bake igniter is usually mounted on the oven burner. It's about 1 inch by 4-8 inches (depending on the model), and comes in round or flat styles. If you don't see the igniter glow at all, it's probably burned out. Replace the igniter if found defective. Note: one of the exceptions could be that your oven is set to automatic mode instead of manual. If this is the case, set your oven to manual mode and check again.

If the bake igniter glows red and not bright yellow or white, it is probably because it is too weak. When this happens, the safety valve would not let the gas out into the oven burner. A weak igniter must be replaced.

A faulty igniter is probably the most common cause, however there are others:

O-defective thermostat
O-defective selector switch
O-defective gas safety valve
O-defective gas valve coils