Adp7966 with F3 error code. What's the problem?

Here list of Kitchen Aid range and oven codes.
4 Digit Failure Codes
F1 - E0 EEPROM communication error
F1 - E1 EEPROM checksum error
F1 - E2 UL A/D error
F1 - E4 Model ID error
F1 - E5 Calibration shifted
F1 - E6 Latch signal mismatch error
F1 - E9 Stack overflow
F1 - E3 Wiring harness cavity size does not match stored value
F2 - E0 Shorted touch pad
F2 - E1 Keypad cable connection error
F2 - E5 Cancel key drive line open
F2 - E6 Cancel key drive line open
F3 - E0 Oven temperature sensor (RTD) opened (upper oven on double oven models)
F3 - E1 Oven temperature sensor (RTD) shorted (upper oven on double oven models)
F3 - E2 Oven temperature is too high (Cook mode)
F3 - E3 Oven temperature is too high (Clean mode)
F3 - E4 Oven temperature sensor (RTD) opened (lower oven on double oven models)
F3 - E5 Oven temperature sensor (RTD) shorted (lower oven on double oven models)
F3 - E6 Drawer sensor open
F3 - E7 Warming drawer sensor shorted
F4 - E1 Meat probe malfunction - shorted
F5 - E0 Door Switch
F5 - E1 Self clean latch will not lock
F5 - E2 Latch during CLEAN error
F5 - E5 Self clean temperature not reached within 45 minutes.
F5 - E6 Door is open, but latch is locked
F5 - E7 Self clean latch will not unlock
F6 - E0 Return line not connected
F7 - E1 Common switch wire defective
Two digit codes:
F0 ERC Board failure
F1 ERC Board failure
F2 Oven temperature is too high
F3 Oven temperature sensor open
F4 Oven temperature sensor shorted
F5 ERC Board failure
F7 Function key stuck on ERC
F8 ERC Board failure
F9 Oven door lock failure
Microwave and Microwave combo error codes:
F1 - E3 or F1 - E4 Electronic control malfunction
F2 - E0 or F2 - E1 Keypad connection error
F2 - E3 Keypad held down too long, or keypad is shorted.
If you get an error code, try first resetting the code:
1. Disconnect power for about two minutes.
2. Connect back power.
3. If code re-appears, test and eventually replace faulty part.

Here a list of Whirpool oven fault codes. The codes had been collected from different service manuals. This was a memo that I wrote for my own use. I think this can be useful to owners and technicians.

WHIRLPOOL - most models
Range/Stove and Oven Fault Codes, Common error codes.

F1 - Analog control board Failure
Disconnect for one minute - if error comes back, replace control board
F1 - Shorted control keypad
Replace keypad
F3 - Oven temperature sensor open
Replace oven temperature probe
F2 - Oven temperature sensor shorted
Replace oven temperature probe
F3 - Oven too hot
Replace oven temperature probe
F3 - Clean temperature too hot
Replace oven probe
F5 - Door latch switch fault
Test and replace the door switch.


Whirlpool with 4 Digit Failure Code:

F1 - E1 - Electronic control (flip flop)
Replace control board
F2 - E0 - Shorted control keypad
Replace keypad
F3 - E0 - Oven temperature probe open
Replace temperature probe
F3 - E1 - Oven temperature probe shorted
Replace temperature probe
F3 - E2 - Oven temp too high
Replace temperature probe
F3 - E3 - Clean temp too hot
Replace temp. probe
F5 - E0 - Check door latch
F5 - E1 - Check door latch
Replace switch if defective

WHIRLPOOL Polara models 5 digit codes:

F1 F0 - EEPROM communication error
Replace ERC
F1 E1 - EEPROM checksum error
Replace ERC
F1 E2:7 - UL A/D errors
Replace ERC
F1 E4:2 - Model ID error
Reinsert keytail.
F1 E6:0 - Latch signal mismatch error
Replace ERC
F2 E0:4 - Shorted key error
Replace keypad assembly
F2 E1:3 Keytail unplugged
reinsert the keytail
F3 E0:5 Top oven sensor open
Test and replace top probe.
F3 E1:6 Top oven shorted
Test and replace temp probe
F3 E2:9 Bake range over temperature
Test and replace temp probe
F3 E3:8 Clean range over temperature
Test and replace temp probe.
F3 E4:10 Bottom oven sensor open
Test and replace temp probe
F3 E:15 Bottom oven sensor shorted
Test and replace temp probe
F5 E0:14 Door switch errot
Test and eventually replace door lock switch
F5 E1:16 Door latch not operating
Test and eventually replace door latch
F8 E0:17 Refrigeration error
Test the cooling module.
PF Power failure - Does not indicate a fault.
PF occurs when power is disconnected.

WHIRLPOOL
Models SF3, 30'' and 24"

F2 - Oven temperature above specifications
Check 8-pin connector from temp. probe to Electronic Oven Control
F3 - Open oven temperature probe failure
Check wiring, replace oven probe if necessary
F4 - Shorted oven temperature sensor failure
Check wiring harness, replace oven temperature probe if necessary
F5 - Push button stuck or faulty
Check for binding of pushbuttons and control panel glass. If OK, replace touch panel
F6 - Electronic control logic error (timing)
Replace Electronic Range Control (ERC)
F7 - Electronic control logic error (lock motor)
Replace ERC.
F8 - Electronic control logic error
Replace ERC.