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The F3-E2 error code means that the heated well above the setting the tempature was set at. The usual reason the oven would over heat by so much is a defective oven tempature sensor and the sensor would need to be tested to see if is the problem to test the sensor it would need to disconnected from the wiring to it and measure the amount of ohms of resistiance AT ROOM TEMPATURE when the oven is off and cool. At room temp. the the meter used to check the sensor should display between 1060-1100 ohms,if the number is vastly different that 1060-1100 at room tempature the sensor is defiently bad and should be replaced. This is what the sensor looks like it will be inside of the oven chamber and again to properly check it the wiring should be unplugged and the meter leads should be placed into the plug at the end of the sensor to measure the ohms. If after checking the sensor if its within the range of 1060-1100 ohms at room tempature the problem is going to be the control board.
Its likely a bad temature sensor there is two differant ones for the tempature one is called the ECT if that one were bad the vehicle wouldn't be running so good because it tells the computer what the engine temp is the other one controls the gauge olny that sounds like it because it can effict readings on other daskboard instremants . So as long as you are not over heating coolant levels oil is up there and its running ok its a simple fix that you could do your self for under 20 dollars. The sensor is located near where the radiator the upper one hooks to the engine it will have one wire going to it the ECT will have three and be located vary close to it because thats the best place for it to get the best reading of the engine coolant tempature and thats what it needs to know
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.
Is this oven gas or electric? If it is gas then it can be normal to see 30 to 50 degrees difference in tempature. The tempature in a gas oven works on the average tempature. For example: The oven tempature may rise all the way up to 370 degrees. Then the burner will shut off. And then the tempature can drop all the way to 330 degrees. Then take 330 and add that to 370 then divide that number by two and the average tempature will be 350. If your oven is electric then the tempature should be much more consistant but can have a 10 to 15 degree variance. Also the standard oven tempature guage that you put in the oven or even the temp guage built into the oven are not very accurate. We us a Fluke meter with a thermocouple to calibrate an oven. So to check your oven for proper tempature regulation you will first need to let the oven pre-heat for about 15 minutes. Then place the thermocouple in the center of the oven. If the oven is electric the take a temp reading every 5 minutes and average them out. If the oven is gas then you will need to take a temp reading when the tempature reaches it's highest and lowest points. Take at least 5 consectutive readings and average them out. You should get an average within 10 degrees of set temp(350 degrees). If it is off by 35 degrees or less you can usually caluibrate the thermostat back to proper temp. This procedure can be different for each range model. If it is more than 35 degrees off or you are getting irratic readings then the thermostat or thermostat components might need to be replaced.
RTD is resistence tempature detector. The oven is telling you that the tempature probe circuit is open. The temapture probe may have been damaged due to the self-cleaning cycle or it could just be the wiring harness is loose. You will need to remove the tempature probe and test it with a ohm meter. The average reading should be aroun 1200 ohms at room tempature. If it is testing open or the ohm reading is way off then you will need to replace the tempature probe. If it is testing good then it could be aproblem with the control board.
HI, You will need to check the oven sensor wires that link the actual sensor to the main control board. Make sure that the contacts are connected properly, and not loose, or corroded. If all the wiring checks out, test the sensor for the correct resistance readings.(you will need a multimeter for this test)
The most common oven sensor should be approximately, 1100 ohms when at room temperature. The others may be close to as follows:
If the sensor test is adequate, and the wiring is Ok at the control, this will lead to a failed control board. replace the control in this case.
The sensor is, generally, located inside the oven, mounted on the back wall, on the top right, or left corner. There will be two screws holding the housing on the back of the oven wall. Once the screws are removed, the sensor will need to be extracted from the back side of the unit.
if you read your tappan instructions, it will tell you to turn your oven to 550 degrees, then press and hold the bake button for 15 seconds. it will blank out and go to 0. adjust temp up or down accordingly. peace out.