I tried turning the main oven on and it didn't heat up and had gas odor. Side oven and burners were working fine. Next day, tried again and it worked no problem. Next day, same issue.

That means the pilot flame is not directed towards the main gas orifice or tthe first main orifice next to the pilot burner is blocked with dirt

If the gets give no gas then sounds like a Thermocouple, this is a device that allows the gas to come on after a period of time ensuring that the pilot is lit and heated up this thermocouple, once it heats it then allows gas to enter and ignite the main burner..hope this helps ,please leave feedback.

If this is an electric range, it sounds like you are not geting 220v all the time. check were your cord or house power hooks up to range. You may find one side of the 220 line burnt. Shut off power and repair conections. or call a qulified tech.

The main solution of it is to clean the gas tube.

Something is stopping the gas flow. Turn off gas. Disconnect line from the stove have someone turn on and off the the gas just for a second.(make sure no flame in room). See if gas is available.If not it is the gas line leading into the house somewhere,not the stove.  Follow the piping to the first thng it comes to. Disconnect that line and see if it is open from there back to the connection. If you finally get to the valve,which I dont think you will . You will have to disassemble  or replace it. 

There is a cover plate that has two screws holding it down. Inspect the pilot area and you will see a hot surface igniter sitting right next to it.. That is what lights pilot and then the pilot lights main burner. You need a new igniter. Also do not touch any part of the hot surface igniter as human oil will shorten the life of part.

Check both gas valve solonoids for 216 ohms [blue broiler wire to the orange common and red oven wire to orange common] both must be ok.

Check oven temp sensor for 1080 ohms.

If above are ok then the problem is either the spark module or the control board.

Since the gas valve was not opening and there was not ignitor sound I replaced the spark module for about $90. You have a 50-50 chance of being right.

My range is relitively new and I'm haveing an oven light problem which I traced to the control board so I may replaced this board to for about $200.

HS

you most likely have a bad oven ignitor...if you see an orange glow under the oven panel that is your ignitor trying to come on....but if it is weak it will not open the gas valve.....acess the ignitor and replace it

The ignitor is weak and not lighting the oven consistently. Need to replace the ignitor.

That's my mom!!! Go Sheila!!! Hehe.. -RET-