Oven not baking

Question edited for clarity and make some sentences.
Question moved form Misc.

It sounds like you have a bad temperature sensor. Some can be calibrated, but not by a hundred degrees.

https://www.google.com/search?q=ge+jb250df1ww+calibrate+oven+temperature

If your built-in electric oven is getting to temperature and then quitting during a bake cycle, and the upper heating element is not working during the bake cycle but works on the broil setting, it is possible that the problem is with the bake element. Here are some troubleshooting steps you can take:

1. Check the bake element: The bake element is the heating element located at the bottom of the oven. To check if the bake element is working properly, turn on the oven and set it to bake mode. Open the oven door and look at the bake element. It should be glowing red. If it is not, then the bake element is likely faulty and needs to be replaced.
2. Check the oven temperature sensor: The oven temperature sensor is a small probe that is located inside the oven. Its job is to monitor the temperature inside the oven and communicate that information to the oven's control board. If the sensor is faulty, it may cause the oven to shut off prematurely. You can test the sensor with a multimeter to see if it is working properly. If it is not, then it needs to be replaced.
3. Check the oven control board: If both the bake element and the oven temperature sensor are working properly, then the problem may be with the oven's control board. The control board is responsible for controlling the oven's heating elements and other functions. If it is faulty, it may be shutting off the oven prematurely. In this case, the control board will need to be replaced.

It is recommended to hire a qualified technician to perform these tests and replace any faulty parts to avoid any risks of electrical shock or damage to the oven.

Sounds like temperature sensor if you feel both elements getting warm.

Hello William - Sounds like the element or the control board to the element is not communicating correctly. I would have a professional diagnose the element first. You may only need to replace it. Otherwise it could be the control board not allowing the element to heat up properly, a faulty mechanical thermostat or an oven sensor.

Hi,

Thank you for contacting Fixya.com.

First you need to check whether you are getting full 220 volts + to the oven. Some oven controls have adjustable knobs where can be fine tuned. The temperature can be calibrated by 25 degrees but not any 200 degrees. I think these can get you may be up to 75 degrees max. It seems like your sensing bulb is mounted right your oven control which has the sensing bulb attached could very well be shot. Also check if the elements work? Does the broil get red when set on broil; does the bake get red when set on bake? If yes the wiring should be ok and possibly/probably is a bad oven temp control. If the elements do not get red, that would have to be investigated (burnt wire, bad selector switch, bad oven control, burnt wire. Turn on the oven with the meter connected. It should show full voltage when you first turn it on and the thermostat will turn it on and off.

If the sensor inside the ovens baking compartment is not damaged, touching any metal part, bent, pitted, no foil is used on the racks or lower plate, in an attempt to keep ovens internal clean, etc, then temp sensor is likely defective. Which means the ECR (control unit) will need to be replaced.

Please get back to us if you have any further query.

Have a nice day.

You may have 2 problems.
One. The temperature sensor could be bad. You can remove the temperature sensor and check it with a ohm meter. It should read 1050 to 1150 ohms. If not. It is bad.
Two. The glowbar ignitor could be bad and not igniting the gas safety valve.Open the bottom drawer of the oven and set the oven to bake. The burner should light in 60 seconds or less. Re-light should be about 30 seconds or less.
If it takes longer the ignitor is bad.

Chances are you have a bad thermistor (internal temperature sensor).

Your owner's manual should have a number or Web address for Westpoint customer service.

They should be able to tell you where you can locate an authorized servicer or parts.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

HI SIR  
When you first use your Oven, the Oven will need to "settle". That is, it needs to burn off production residues and dust. The metal used in the Oven will also expand slightly when first used. You will experience some crackling and a strong smell. This is perfectly normal and we advice you anticipate this "settling" prior to use. Using an empty Oven, select Function 4 and set a temperature of 250°, allow the Oven to "settle" for hour, turn to function 3 and heat for a further 1/2 hour.
Multifunction Oven Function Selections

2. Defrost - This function activates the fan only, (no heat is used) to allow controlled and hygienic defrosting.
3. Conventional cooking - Normal or traditional cooking functions using the top and bottom elements. When using this function set the thermostat between 50 - 250°C. When the desired temperature is reached the yellow light will go out and then alternate between lit and unlit as the temperature is controlled.
4. Fan-Forced cooking - This selection is best for multilevel cooking as the heat generated by the central element is circulated around the Oven, creating an even heat environment. You will need to set the thermostat dial between 50-250°C for this function.
5. Center Griller - For best results set the thermostat to MAX. The door may remain closed or completely open.
6. Large Griller - For best results set the thermostat to MAX. The door may remain closed or completely open.
7. Fan Griller - This function combines the grill element with fan assistance and is used in conjunction with the thermostat. The Oven door must remain CLOSED during cooking. The thermostat dial should be set between 50-250°C for this function. 
8. Fan-assisted Baking or Patisserie Setting - Combines the concealed bottom element with fan assistance and is used in conjunction with the thermostat. The Oven door must remain CLOSED during cooking.

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Advanced Oven Features

Cavity Cooling
The Oven has an advanced cavity cooling system. A cylindrical fan is mounted on the rear outside frame of the Oven. This fan assists the movement of air through the Oven cavity keeping it cool. In addition to reducing the temperature in the Oven cavity, the air is blown out around the Oven door handle which keeps the door handle cool. The cooling fan is activated when the Oven light or any cooking function is selected and will switch off after all Oven functions have been turned off.

Triple Reflective Door Glazing
Some Ovens have two levels of removable door glass. The two inner layers are removable and are made of a reflective glass which, in effect, reflects heat back into the Oven and results in a significant reduction in the outside door surface temperature. To clean the door glass, use a coin or large screwdriver to remove the screws. Wipe both sides of the inner, middle and outer glass. Wipe the sealing gasket. Don't forget to replace the rubber sealing gasket around the centre glass layer before replacing the glass. Ensure the narrow air gap lies between the inner and centre glass layers and the wider gap lies between the centre and outside glass layers. Tighten each screw gradually, one then the other until firm. Do not overtighten.

Wipe Clean Enamel (Extra Optional)
Some models have easyclean blue enamel paint throughout the internal cavity walls. Other models have baking trays and grill pans finished in the soft grey super tough "wipe clean" enamel. This enamel is less porous than conventional, so that food does not adhere as easily. Simply wipe clean with a soapy cloth or creme cleanser when cooking is finished. For baked on residue, use a smooth scraper or if necessary a non-caustic Oven cleaner.

Drop Down Grill Element (Extra Optional)
The removal of a single screw at the front of the upper grill element in some models allows the element to drop down so that cleaning of the roof of the Oven is made easy. On completion of cleaning, simply replace the grill element and secure with the screw, finger-tight.

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The Electronic Timer



Normal Baking

Function 3: Normal Oven baking using heat from both the upper element and concealed lower element.

To bake, place the Oven rack in the appropriate position according to the type of food to be cooked. Turn the Function Selector to Position 3 and the thermostat knob to the correct temperature, and allow the Oven to fully preheat for best results.

Ideal for cooking casseroles, soufflés, roast, meats, and other items which require a slow method of cooking.

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Fan Forced Baking

Function 4: Fan-forced central element cooking requires slightly different timing techniques than normal cooking. The fan draws the air in and over the central element which is positioned around the fan and then circulates it back around the Oven cavity. The even distributor of heat allows foods to rise and cook simultaneously regardless of shelf level. Lower cooking temperatures and in some cases less cooking time is another advantage of this feature.

Turn the Function Selector to Position 4 and turn the thermostat to the desired temperature. Pre heating takes much less time than a normal bake Oven.

Note: When cooking meats, for best results always preheat the Oven to ensure the meat surface is sealed to lock-in juices for a moist and tender result.

Fan forced cooking is ideal for multilevel cooking e.g.. patty cakes. Another advantage of fan forced cooking is that different types of food may be cooked simultaneously without mixing the aromas or flavours. When using the Oven in this way, ensure that all the foods require the same cooking temperature and check the finish times of each dish for best results.

Please note that fan-forced cooking is faster than conventional methods, so take care not to burn your food when you first start using this method.

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Grilling

Function 5 & 6: During grilling the door may remain closed or completely open.

This function offers the traditional grilling method necessary to achieve proper browning without overcooking the interior of the foods.

Position 5 activates the centre section of the upper grill element only, which is ideal for browning smaller portions or thinner cuts of meat.

Position 6 activates the entire upper element for the grilling of large quantities or thick cuts of meat.

Allow the griller to pre-heat for approx. 2 minutes before sliding the tray into position.

Place the grill tray into the roasting pan and arrange food according to the function you have selected, either in the centre of the tray or spread across the full width of the tray. Position the tray at the correct grilling level and turn the thermostat control to MAX for best results.

As the temperature is set to MAX you may need to adjust your grilling shelf height to suit the desired cooking result. If the tray is too close to the element, the food will be exposed to the full effect of the element and may burn and create smoke.

If oven does not heat check heating element and oven control. Follow also suggestion below:
" It won't bake Usually, when an oven won't bake, it's because the bake element is burned out. The bake element is the black, pencil- thick tube at the bottom of the oven. When the oven heats, the element glows red. This element has an expected life-span of several years. It may last for only one; it may last for many more. When the element burns out, you need to replace it.

It bakes poorly Here are two instances of when food "bakes poorly:"

• When the food you're baking is done on top but not on the bottom--or when baking just takes far too long to finish--the bake element may be burned out.


You may get fooled into thinking it's working, because the oven is hot inside. But many electric ovens use the broil element, too, during the preheat and bake cycles. So the food may be getting heated only by the broil element, which causes poor baking results.

If the bake element is burned out, replacing it should solve the problem. Otherwise, you need to further troubleshoot the oven's electrical system to locate the defective wire or component.


• When the temperature is consistent but too high or too low, it could be one of several different things. First check to see if the thermostat sensing bulb has come loose from its holder. It could be lying on the floor of the oven or resting on the heating element. This would cause the oven to not heat correctly.


If the thermostat bulb is not dislodged, it's likely that the thermostat or sensor is either mis-calibrated or defective.

Electronic ovens with a digital display use a sensor to monitor oven temperature. To solve temperature problems for these models, you may 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.

If, 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, 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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From repairclinic