Question about GE Profile Spectra JGBP90 Gas Kitchen Range
The actual temperature in the oven is 50 degrees less then what the digital display says.
One thing you should know about a gas oven is that they do not keep a constant tempature like an electric oven does. So going by a tempature gauge in the oven can fool you. The way a gas oven works is by "average" tempature. In other words if you take the highest and lowest tempature readings and average them out you will get the actual tempature. For example let's say that you set the oven to 350. Well first it will take about 10 to 15 minutes for the oven to properly pre-heat. Once it is preheated you can listen to the gas burner and watch a tempature gauge(flook meter is best). When the gas burner shuts off the oven tempature will continue to rise. When the oven tempature stops rising then you will take that reading. Then wait for the oven burner to come back on again and watch the tempature gauge. When the tempature gets to it's lowest point and stops then take that reading. Do this several times and then take all the tempature readings and add them together then divide that number by the number of readings you took and that will give you the actual tempature. Within 5 degrees is great but anything over 10 degrees can affect your cooking. This will give you an idea if your oven is out of calibration or not.
There is a calibration procedure. The instuctions are located in the owners manual and can be found here http://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=49-85131.PDF
Just go to the "Thermostat Adjustment" section for the proper calibration procedure.
Posted on Jul 04, 2010
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Electronic ovens with a digital display use a sensor to monitor oven temperature. To solve temperature problems for these models, you need to replace the sensor. On some digital-display models, you can calibrate the temperature using the key pad. See your operator's manual for details.
Ovens without a digital display often use a mechanical system for controlling temperature. On many of these units, you can remove the thermostat knob and adjust the knob itself to more accurately represent the actual setting of the thermostat.
When you remove the knob, there's a screw on the back of it with a small calibration plate, you can loosen the screw, adjust the plate, and then tighten the screw again. If the knob isn't adjustable, and the oven temperature is off by more than 30 to 40 degrees, you need to replace the thermostat to solve the problem.
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