Kitchen Aid KEBC207KSS04 Slow to Heat Up
Model Number: KEBC207KSS04 Brand:
Kitchen Aid Age:
More than 10 years
Sorry about the length of this post, but I wanted to include as much detail as possible for anyone who may be able to respond. Our Kitchen Aid KEBC207KSS04 Double Oven takes what seems to be a long time to reach the desired temperature setting. Over the 11 years since new, I have replaced a thermal fuse (self-cleaning gone bad), a thermostat and the control panel (display went out). We use standard in-oven mechanical thermometers to monitor actual oven temperature (TruTemp 3506). With the assistance of a friend who is an electrician, we checked the continuity of all 5 elements (2 bake, 2 broil, 1 convection) and they all tested fine. We checked incoming voltage at the junction box and at each element and all fine at 240v. We checked the temperature sensors in each oven and their resistance readings for room temperature and for an oven temperature at 400 degrees were spot on with the numbers in the oven's technical pamphlet. I can't find anything specifically wrong, but as an example of what is happening, when I set our lower oven to bake at 400 degrees, the display shows both the broil and the bake element as on (red squiggly lines) during the preheat phase. The display reflects Lo, then maybe 250, 300, etc. until at about the 10 minute mark the display reflects the desired 400 degrees, the beep occurs to let you know that preheat is complete, and the broil element turns off (I can tell because the red glow quickly goes away). However, the actual temperature in the oven at this point as monitored by 2 of the TruTemp oven thermometers placed in the left and right halves of the oven is only about 340 degrees. From this point, the temperature continues to climb more slowly towards 400 degrees as the broiler element is no longer helping the baking element. At the 15 minute mark, the actual temperature in the oven is 375. At the 20 minute mark, the actual temperature in the oven is 380, and at the 25 minute mark (since start) the actual oven temperature finally reaches and maintains 400 degrees. The upper oven provides similar results when tested but actually takes a few minutes longer to reach 400 degrees. My questions are the following - shouldn't the ovens reach the desired temperature more quickly? Why does the display (control panel) think the oven temperature is 400 degrees and end the preheat function (using both elements) well before the actual oven temperature reaches 400 degrees? If the control panel thinks the oven is at 400 degrees when it is actually at 340 degrees, why does the actual temperature in the oven continue to go up to finally reach a real 400 degrees? Why doesn't it stop and maintain at 340 degrees? When I replaced the control board 3 years ago, I did not "calibrate" the new control board for oven size as described in the oven's technical pamphlet. I actually just saw that requirement today for the first time. I tried to perform the calibration as described but could not get it to work. Is there a chance that the board thinks my 30 inch ovens are a different size and that is the cause of the disparity between the actual oven temperature and the displayed temperature? Do I maybe need to replace the control panel again? Is this all maybe just a quirk of these KitchenAid ovens and an annoyance we have to account for and live with? Thanks in advance for any help provided.