It's a large oven. You should allow 40minutes to PROPERLY preheat any large oven. remember, you want to heat the metal walls to temperature, not just the air space inside. Otherwise you lose the air temp as soon as you open the door. A proper preheat takes quite awhile and is most important for items such as cookies, cakes, breads and pizzas. (and scones)
Start earlier?
>> check all elements for current,
check seals
check temperature calibration (allowed to be 15% ie 180 can be 153 or 207 Celsius!) no wonder Margs' scones cook faster at her house :-)
SOURCE: Kenmore Ultra Bake Oven Won't Heat Up
Turn the breakers off and wait 10 minutes and then on. If this doesn't clear the problem, you'll need an electronic timer module. Electrical spikes cause problems like this.
SOURCE: Oven appears to start, takes forever to preheat,
This is what I would do: I would unplug the range and connect my test cord to your range cord. I use an ammeter along with my test cord to read the amp draw of the bake ignitor. If it cannot get above 3.5 amps I know the ignitor is bad or weak. Since the oven is working that means there is a good circuit. In order for the safety bi-metal to open the amp draw must reach 3.5 amps or better. So to me I am thinking bad ignitor. To get to it I remove the door oven racks and bottom, I then remove the flame spreader and unplug the quick connect to the ignitor. I remove the burner and ignitor and replace the ignitor on a work bench. I am too old to be bending over and trying to do any parts replacement inside an oven. LOL. I have a training film which shows how the silicone carbide ignitor works HERE. Post a model number and I may have a service manual, do not forget to rate the answer.
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61
Testimonial: "This advise seems right on. Thanks for your fast and detailed advise. Steve"
SOURCE: Kenmore Gas Oven doesn't heat
Hi,
Here is a tip that I wrote that will help you with that problem...
The ignitor for your burner has faied...
http://www.fixya.com/support/r3663023-oven_not_working_or_oven_not_heating
heatman101
SOURCE: My Kenmore oven, model 790, displays and beeps the F10 Fault
June 8, 2010
Same thing happened to mine this morning....cut the circuit breaker for a hour....open oven and let it cool....
mine stopped, finally. Dont know if its a long term fix yet.. but at least it stopped the beeping.
SOURCE: kenmore model 790.9621 electric stove error code
it is the bake relay sticking--on the eletronic oven control board.i tried to buy the relays but,no luck.must buy the eoc board-great engineering
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The oven seems to take longer than most ovens to heat up, sometimes 20 min, so I didn't know if there's any adjustments I can make or if anything should be replaced?
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