My Frigidaire dual fuel oven wont get hot. Both heat elements and temperature sensor have been replaced and it still only gets warm. No error codes are displayed.

Your wiring diagram and parts schematics are here in the link below. Normally the bottom element does glow read hot after a couple of minutes. Broil elements last a lot longer because they aren't used as much. There is only one Control Board. If I was guessing, I would say the temperature sensor is at fault. Elements either work, or they don't, but you can easily test continuity with a meter. Many parts are discontinued.

https://www.searspartsdirect.com/model/3f7nkrfnvp-001428/frigidaire-pleb30t8ccb-electric-wall-oven-parts

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

The thermostat is defective. It is a temperature sensor operated switch. It turns the heating element on and off to regulate the proper temperature in the oven at all times.

Good Afternoon Tasha - There could be
a number of any one of several underlying causes in why the oven is
experiencing this particular issue:


·
Convection
heating element


·
Thermal cutout


·
Thermal oven
sensor


·
EOC
(electronic oven control)


·
Ignitor


·
Bake or broil
element


·
All wired
connections



The parts above will need to be assessed for further
evaluation. Lastly, the oven cavity and insulation should be checked to ensure
there are no gaps or damages that will leak out the heat. At t his time, I
would recommend contacting a professional to assist you further since it is always
a good idea to get the appropriate diagnosis prior to making any unnecessary
part replacements.

You are experiencing a runaway temperature, or too hot of a temperature for the control board and sensors within the unit. When the unit gets this error code it shuts down for safety reasons. You would need a professional to diagnose the connections and control wiring to the control board, and the elements for safety.

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. To determine if the heating element is burned out, you will have to test the element for resistance across the 2 ends , with the meter set on the 200 scale if you get a good reading like 000 it would indicate that the part may be ok but if yoiu get a reading of a 01 or a 1 or lomething like this it would indicate tha part is bad then you need to replace it
However you will also want to 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. It won't broil

Hi, F2 error code on the Amana Oven means "Oven too hot" You have to replace Oven temperature sensor to fix it.
F3 error code means "Open or shorted oven temperature sensor". Yo also have to replace Oven temperature sensor to fix it.

Summarily, both code has to do with the temperature sensor which you need to replace...

Hi.

Since the oven has two heating elements, if the oven does not heat up on any condition, and both broiling and baking element are not working, then the most common fault causing the problem is a faulty temperature probe.

The temperature probe is located inside the oven cavity.
On most ovens there is only one temperature sensor, connected in line on the circuit from electronic oven control to baking and broiling element.
When the probe fails, it will affect both baking and broiling function.

The temperature probe is tested reaching the probe, cutting or disconnecting its wiring, and testing the probe at room temperature, with a multimeter set on impedance at Rx1. If the multimeter reads no continuity (circuit open), then the probe must be replaced.

If the temperature probe is good, then parts that may be responsible for the fault are oven electronic control and wiring. Having both elements failing at the same time would be rather unusual.

If only one element is failing, then the fault is probably the element. In that case you can test the element removing it from the cavity, and testing Ohms on the element. If circuit is open , then the element must be replaced.

Regards.

F2
Oven temperature too hot
Check and replace oven temperature sensor (RTD).
F3
Open oven temperature sensor (RTD)
Check sensor harness and harness connection between oven sensor and oven control. Replace oven temperature sensor (RTD) if wiring is ok.
So i suppose its a sensor replacement is necessary.These are the fault code explanations by frigidaire.good luck with the machine.Please do post results and comments.