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January 20th, 2008, 10:16 AM
#1
kitchenaid oven - preheat and temp display problem
We have a 2 year old double oven from kitchenaid. When preheating, say to 400, we get tone after aprx 10 minutes that we've always thought meant the oven was up to temp (thats the way it's described in the manual) We found that some of our meals weren't getting done so we checked the temp with a thermometer and found that the temp was only getting up to 200 on the upper and 275 on the lower when the tone goes off.
The upper never got up to temp. The lower reached the goal temp after 30 minutes.
So, here's the part that I thought was worth commenting on. The Kitchenaid helpline is telling me this is by design. That we need to always plan on 25 minutes for the oven to come up to temp. That the display shows the temp we set, not the actual temp in the oven. The tone, they say, is to alert the user that the oven is coming up so they can start the food prep.(that was a new one for me).
I referred the helpline (who was very polite), to the documentation that came with the oven. Where it says the tone sounds when the oven comes up to temp. They replied that the documentation is wrong and that they get their information directly from the engineers. I asked for updated documentation that explained this and their reply is that there is none. My response was that I thought oven preheat process was pretty much set decades ago and that I never heard of an oven that worked this way, and if this was really true, that I was very sorry I bought the oven.
So....my inclination is to setup a service call on the range. I mean, we can put thermometers to check when the unit comes up to temp but I can't believe the oven is working correctly. I'm also wondering if part of the helpline's job is to avoid warranty calls. They could be handing me a line so that I don't call a tech until after we slip off warranty.
I'd appreciate any help or comments. I promised the helpline person that if their oven really worked this way, that I'd give kitchenaid some free advertising on the poor quality of their product.
Penny for your thoughts...
Last edited by BTraut; January 20th, 2008 at 10:24 AM.
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January 20th, 2008, 11:56 AM
#2
Thats odd the KitchenAid helpline would say all those incorrect statements, but its typical is the person on the helpline is new or just uninformed.
The tone means the temp should be up to what its set to and ready to start baking.
What kind of a thermometer do you use to check your ovens? The round metal kind with the needle pointer is slow and will not accuatly read correct at first, then it will catch up.
Here's the type I use, its very accurate at all times:
Polder Cooking Thermometer with Timer and Clock

Jake
Appliance Repair School 1987-1988
Star Appliance Tech. 2 yrs. 1988-1990
Wards Appliance Tech. 11 yrs. 1990-2001
Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
Jake's Appliance Repair Nov. 2005-present
Look-Up & Order Parts
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January 20th, 2008, 02:59 PM
#3
The thermometer
Hi,
Thanks for the reply. I'm posting the response from kitchenaid below, I'm happy to send you the whole email if that is helpful. Would you be of the opinion that the oven is broken then? I've never heard of the "conditioning" option before.
From KitchenAid,
Thank you for the reply. Unfortunately, we do not have anything in print that I can send to you that explains this feature. This is the only information that was provided to us by our engineering department: One of the features on our ovens is the option of using a shorter oven preheat time. When you program the desired temperature and press start, the oven begins to heat. The ovens have a preprogrammed time for the temperature range selected.
The consumer will see a time counting down in the display. When the time counts down to zero a tone will sound. The tone is an indication that the oven cavity and racks are heated or conditioned. This does not mean the oven is up to temperature. (It is normal for the oven temperature to be 75 - 100 degrees below the selected temperature after the tone sounds). When the tone sounds the consumer has the option of placing their food in the oven at this time or waiting the standard 15-20 minutes for a true preheat.
There is a "rule of thumb" when using this feature. If the bake time of the food you're cooking is more than 25 minutes, then you can expect result comparable to waiting the full preheat time (15-20 minutes). If the bake times are shorter than 25 minutes as in baking cookies and pastries, then we do recommend preheating the oven longer.
From an earlier note:
Thank you for the reply. The first 6-8 minutes are considered the preconditioning time. When the tone sounds, that's basically telling you that you can start preparing the food to go into the oven. Then you can put the food in 10-15 minutes later.
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January 20th, 2008, 08:02 PM
#4
Thats very odd, it sounds like BS to me, since they can't provide literature to back it up.
Jake
Appliance Repair School 1987-1988
Star Appliance Tech. 2 yrs. 1988-1990
Wards Appliance Tech. 11 yrs. 1990-2001
Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
Jake's Appliance Repair Nov. 2005-present
Look-Up & Order Parts
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January 21st, 2008, 01:50 PM
#5
Another mail from the kitchenaid helpline
I had asked for a contact in their engineering dept. This is the reply I got:
Thank you for your reply. This feature is not only available on this model. This is how all of our ovens and ranges are designed. Unfortunately, we do not have a way for your to contact our engineering department directly nor will the service technician have any information that we don't already have here.
Again, we apologize for any inconvenience this concern may have caused.
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January 21st, 2008, 05:27 PM
#6
Yea, something seems weird.
So you've had this double oven for 2 years and when you first got it everything worked fine? then just recently started acting up? or has this been an issue since day 1?
Jake
Appliance Repair School 1987-1988
Star Appliance Tech. 2 yrs. 1988-1990
Wards Appliance Tech. 11 yrs. 1990-2001
Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
Jake's Appliance Repair Nov. 2005-present
Look-Up & Order Parts
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February 7th, 2008, 05:37 PM
#7

Originally Posted by
BTraut
When preheating, say to 400, we get tone after aprx 10 minutes that we've always thought meant the oven was up to temp (thats the way it's described in the manual) We found that some of our meals weren't getting done so we checked the temp with a thermometer and found that the temp was only getting up to 200 on the upper and 275 on the lower when the tone goes off.
Penny for your thoughts...
I own a Kitchenaid KESA907PWW that is a few years old that has just begun experiencing the identical problem in the electric stove... set at 400, wait for the beep, put in food, set timer, take out food at beep, eat cold food.
I checked the temp with a new oven thermometer and the temp is 100-125 low when the beep first goes off. If I wait another 15-30 minutes, then the preheat is fine.
The oven is set for convection bake, which is how I always cook.
The funny thing is that the oven never did this before last month!
I have a meat probe that I use on the grill that I will use to double check the oven temperature and post another reply.
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February 7th, 2008, 06:34 PM
#8

Originally Posted by
go-rebels
I have a meat probe that I use on the grill that I will use to double check the oven temperature and post another reply.
Test #1, Cold Oven, set conv bake 400F
Time Display Probe
8:39pm (Start oven)
.........200....165
.........250....210
.........300....264
8:47...350....321
8:48...375....354
8:49...385....375
8:50...395....377
8:51...400....375
Brand new oven gage reads 330 (it's in the trash now)
Figuring I need to recalibrate the oven, I set it +20 and run the oven at conv bake for 350, where we most use the oven:
8:57...180....140
.........200....174
.........250....219
.........300....264
.........325....296
9:02...350....343
9:05...350....370
The calibration worked as advertised, but it appears that I didn't need it. I recalibrated the oven back to zero and performed the same test as above:
9:11...188....143
9:12...200....174
9:13...250....228
9:14...300....282
9:18...350....347
It appears as though my testing was not consistent as the oven achieved a thermal "soak" by the time I started the third test. I'll wait awhile and run the last test again using a stone cold oven.
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February 7th, 2008, 07:16 PM
#9
Convection Bake, 350F:
Time Display Probe
.9:57pm (Start oven)
...........LO.....80
.9:58....LO.....84
.9:59....LO....102
10:00...LO....127
10:01..195....161
10:01..200....168
10:02..250....223
10:03..300....276
10:07..350....348
So the oven seems to be running just fine. I think that's what I'll tell the wife!
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