My gas oven heats very slowly and sporadically. It often smells like burning plastic when heating. The oven is about 9 years old and did not have this problem until recently. What could be wrong? Might there be a gas valve somewhere that needs to be replaced? The 4 burners on top work well.

sounds like the insulation on the cord has been worn through and is shorting out. turn off the breaker pull out the oven and look where the cord goes into the oven and look for black burn marks.

I’m happy to help further over the phone at https://www.6ya.com/expert/troy_065b1fb8718d7670

Hi,
If your electric oven is taking too long to heat or just not heating up right,then check out this tip that will give more detail about your problem.

Oven Problems Electric Oven is Heating Slowly or Poorly

heatman101

Hello,

The ignitor is bad again,if it (ignitor) comes on but no flame/heat its the ignotor again, what would make the ignotor go bad so fast (usually last 10-15 years) is a problem with the oven burner, so now BOTH the ignitor and burner would need to be replaced,if it is 15 years old the ignitor is readily avaliable but the burner may not be

Gene

This sounds like a weak igniter, it would have to be a gas oven and the symptoms usually are: takes longer than normal to ignite the burner, may or may not smell gas in the oven, does not maintain set temperature or burner does not come on fully, eventually won't heat at all. On gas ovens, a glo igniter is like a light bulb, the more you cook, the faster it wears out. Bottom line, needs to be replaced. Good luck.

This sounds like a weak igniter, it would have to be a gas oven and the symptoms usually are: takes longer than normal to ignite the burner, may or may not smell gas in the oven, does not maintain set temperature or burner does not come on fully, eventually won't heat at all. On gas ovens, a glo igniter is like a light bulb, the more you cook, the faster it wears out. Bottom line, needs to be replaced. Good luck.

This happened with my oven, happened twice to the same (newer) oven actually. The smell and smoke occurred both with the oven and with the use of burners on stove top. Turned out it was the main line cord which had a split. The first repair they replaced the thermol block and all the bolts holding it into place (for a total of 9 parts) the second time (about a year later) the repairman replaced the line cord and said that it probably should have been done along with the first repair. The smell coming from the oven before the repair was a toxic burning wire or burnt plastic smell. There was also smoke if the oven was left on long enough. The repairman said that the amount of heat to "cook" the connection on the line was at a fairly dangerous level. It was recommended to me by the fire inspector (who was in my unit for annual condo inspections) that it was unsafe and to have it repaired immediately. Hope this helps. Best of luck.

sounds like flame failure device can very in price

goto home depot,lowes and get some ceramic wire nuts and heat tape and electrical tape.cut the wires back on both sides of the terminal block.bypass the t-block and connect the wires with the wire nuts wrap the heat tape then electrical tape on each one.if you have access to a amp meter take readings to make sure the amp draw isnt too high.i would think the wires just burned up from either a loose connection or the heat of the oven.this should solve your problem.

Sounds like the ignitor is weak and needs to be replaced. How old is the oven and what is the model # from the sticker on oven?

You most likely have a defective oven bake ignitor.  Call an experienced tecnician.