We have a Frigidaire Wall Oven that shows Err F3 - no buttons work. Model FSC88B-4 . The Oven temperature sensor measures at 1089 Ohms. There is 5 VDC on the control board. Tried resetting by removing the 120VAC connection on the Power Board. What could be wrong?

possible burner tube blocked if ok check gas pressure from gas valve possible not open all the way

The "F3" fault code is indicating an oven temperature sensor failure or a temperature sensor circuit failure. The oven temperature sensor could be open or shorted. Test the sensor for proper ohm value, frayed or pinch wiring, or connector damage. The oven temperature sensor probe can be found sticking out from the rear wall inside the oven cavity. It will need to be disconnected and tested with an ohm meter. I added a chart in the image below of the resistances of the oven sensor at specific temperatures. At normal ambient room temperature, the oven temperature sensor should have a resistance value of 1050-1100 ohms. See image below. The oven temperature sensor is part #12001655.

hELLO THERE:
on these ovens the f-3 can sometime be incorporated with the f-4 error code also so here is the code and the things to look for both ok ?
F3 - F4 Open oven temperature sensor (circuit) (over 2700 ohms) or, shorted oven temperature sensor. Could be a result of:
· contamination on terminals
· pinched wire in oven temperature sensor circuit
· cold solder joint on control. · Disconnect power to range and remove oven temperature sensor connector from control.
· Measure oven temperature sensor resistance at oven temperature sensor connector (take care not to damage terminals in block) - Should read 1100 ohms at room temperature (approx 72 degrees F).
· Measure each oven temperature sensor lead from connector block to ground. If shorted, look for pinched or cut wire in oven temperature sensor circuit.
· Check connector terminals - Look for deformed or corrosion on terminals. Repair or replace.
If all above is ok replace control.

Hello,4 Digit Failure Code F0 - E0 Analog to Digital Failure Disconnect for 30 seconds - if display re-appears - replace control F1 - E1 Safety flip flop Replace Electronic Range Control/Clock(ERC) F2 - E0 Shorted keypad Replace Electronic Range Control/Clock(ERC) F3 - E0 Oven temperature sensor or oven temperature sensor fuse opened Replace oven temperature sensor or fuse F3 - E1 Oven temperature sensor shorted Replace oven temperature sensor F3 - E2 Oven too hot Replace oven temperature sensor F3 - E3 Clean temp too hot Replace oven temperature sensor F5 - E0 F5 - E1 and E2 Check door/latch switch Replace component 2 Digit Failure Code F0 or F1 or F5 Failed transistor Replace Electronic Range Control/Clock(ERC) F2 - E0 Oven temp too high 1. Test operation of door lock on self-clean models
2. Test relay contact operation
3. High resistance in oven temperature sensor F3

Thanks

Hello there:
Normally this is due to a bad temperature sensor F3 Open oven temperature sensor circuit Measure oven temperature sensor circuit at oven temperature sensor (should be approx 1100 ohms at room temp); check for cut or pinched wire or loss of contact and replace if found faulty

On frigidaire manufactured ranges the fault code "F3" means the ERC/EOC (electronic control) has detected a "open" thermistor/temperature sensor.

if you feel up to it, here's what you can do.

**FIRST; unplug the unit from the wall or shut off the breaker.**

*you will also require a multi-meter or a ohm meter. a measuring device of some kind to check the value of the sensor once removed.

most sensors can be replaced without opening the back panel or sliding out the range and can be done from inside the oven, but be careful not to let the sensor connector slide back thru the opening after disconnecting it.

1) having shut off power to the unit, look into the oven and you'll see the sensor coming thru the back of the oven liner. (skinny pen like instrument) this device will be fastened to the liner by 2 screws, either philips head (star) or robertson (square). some are even small 1/4 inch nut heads, rarely.

2) remove these screws and gently pull the sensor toward you...slowly. you don't want to yank it, and you need to be sure the harness will come thru that small opening (some don't-most do, don't force it. it just means you'll have to unfasten the rear panel of the range, no big deal really). as I said before make sure the connector isn't going to fall back thru the hole when you unfasten the wires.

3) with the sensor removed, measure the ohm value between the two pins at the harness. if the sensor is truely "open" you should get a reading up around 3k ohms. replace it. possible sensor #'s are 316134900, 316217002 and 316217001. those are just the ones I'm aware of. cross reference with your model number at a local parts depot, or online supplier.

if you only get a reading around a thousand ohms, it's good. that may indicate a poor electronic control, the "watchdog" in the processor is "lieing" err, giving false readings/codes. don't worry about that right now though. my advice is for the sake of $20-$40US get a sensor and replace it first before condemning a potentially $200 to $300US control.

hope that helps,

good luck

F3 Oven temperature sensor open Check oven temperature sensor, should be ~1100 ohms at room temperature. If too high or low, replace oven temperature sensor

These are the F2/F3 error codes for a Tappan oven
F2 Oven too hot Check Bake function, if OK, replace oven temperature sensor F3 Oven temperature sensor open Check oven temperature sensor, should be ~1100 ohms at room temperature. If too high or low, replace oven temperature sensor
please take the time to give this solution a fix ya rating.

clarkco

The F30 error code indicates that the electronic oven control board detects an "open" oven temperature sensor probe circuit.
This is usually caused by a failed oven temperature sensor probe.

Replacing this component will likely fix your problem.

You can order this part from www.searspartsdirect.com website.

If you replace this part yourself, be sure that you unplug the range to disconnect electrical power before accessing this component.

On some models, you can replace the probe by removing the screws that mount this component to the inside back wall of the oven.
Carefully pull the probe inside the oven cavity until you encounter the wire harness disconnect plug.
Unplug the sensor and replace it with the new one. Mount the new probe on the back wall of the oven.

On some models, you have to remove the lower back oven panel to access the sensor probe.

If you replace the probe and still have this problem, you will need to unplug the range and measure the resistance through the violet wires that plug into the control board (this is where the sensor probe circuit is connected to the control board).
If the resistance through the oven temperature sensor probe circuit is normal (about 1100 ohms at room temperature) then the electronic oven control board will need to be replaced.


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F3 - F4 Open oven temperature sensor (circuit) (over 2700 ohms) or, shorted oven temperature sensor. Could be a result of:
· contamination on terminals
· pinched wire in oven temperature sensor circuit
· cold solder joint on control. · Disconnect power to range and remove oven temperature sensor connector from control.
· Measure oven temperature sensor resistance at oven temperature sensor connector (take care not to damage terminals in block) - Should read 1100 ohms at room temperature (approx 72 degrees F).
· Measure each oven temperature sensor lead from connector block to ground. If shorted, look for pinched or cut wire in oven temperature sensor circuit.
· Check connector terminals - Look for deformed or corrosion on terminals. Repair or replace.
If all above is ok replace control.