Explosion potential My Jenn Air gas oven used to work great. Now there is a delay when turning it on, then after several minutes there is a loud "woof" with enough force that it blows the oven door slightly open, and then there is a odd "burnt" smell that follows. It seems like something is preventing a normal startup and the gas is building up too much, then "boom". It runs fine after that, but my wife and I are concerned about turning this puppy on and blowing up our kitchen. What should I be looking for to fix this? (I'm not sure what the model # is. Stainless steel, heavy duty burner top, convection oven)

this is potentially serius and if you cannot rectity fault by simple cleaning then you must call in a registered gas engineer.
remove oven trays and any cover plate at base for access. Check the ignion lead from ignitor (either electronic or manual piezzo) and the ceramic electrode that lead goes on to. if there is any short circuit it will not spark. most common fault is dirt etc around the area of pilot or ingitor causing delay with resulting explosion after area becomes saturated with gas, take a brush and clean all you can. I cannot advise to strip down any gas parts as this must be done by registered engineer

Dont start the oven, the burner valve is faulty, the appliance is not safe call in a repairman.

Your thermocouple is probably failing, this should be addressed as soon as possible. Make sure the pilot flame is almost contacting the probe tip of the thermocouple. If it is not than it should be cleaned or adjusted. Thank you, Dana

think getting in an electrician to check the unit out as it is a safety issue

iF THEY ALREADY REPLACED THE EXHAUST FAN , MAY WANT TO REPLACE THE HI LIMIT THERMOSTAT AT REAR OF OVEN... THE THERMOSTAT MAY RESET AFTER 20 MININUTES OF COOL DOWN..

no! never normal for that... check for upstructions in burner tube ..blow out with air seems to work

too much air on top burner ,delayed ignition on oven ,ignitor not lined up properly or check gas presure may need regulator adjustment or replaced. gas 784

they are equiped with a heat sensor it could be a bad thermastat(sensor) or
ventalation problem

Shannbooks The first thing I would recommend to do is to reset the power. Turn off the breaker for the range for couple minutes and then turn it on. In the most cases it works. Set the time of the day and try to use the oven. If it would not solve the problem let me know. Good luck. Gendos. post back...

This usually is an indication of a bad igniter. If this is the standard glow type igniter, it could appear as if it is working, but may not be providing enough current to open the gas valve. This is a safety feature on gas ovens. The gas valve requires a current potential of .32 to .37 amps through the igniter before it will open and allow gas to flow. This prevents gas leakage if the igniter fails to light. The reason your broiler works is probably due to the fact that the broiler gets used less and the igniter is probably in better condition. You can test this theory, if you like, by swapping the igniter for the bake and broil burners to see if the symptoms change. Or, you can simply just replace the bake igniter with a new one. Make sure you secure the power before attempting, though. You shouldn't have to turn off the gas for this. Chances are that's all it is. I hope this helps you.