GE Profile PB920TPWW Technical Service Manual page 22

F-CODE MEANING
F622 Line power error detected by
RPSM
F70x CLEAR/OFF touch key error
F710 Any other touch key error
F720 Main Logic Board internal
touch key chip signal error
F730
F740
F750
F760
F770
F780 60 Hz square wave not getting
to touch key chip on Main
Logic Board
F790 Main Logic Board internal
touch key chip signal error
F7A0 Main Logic Board internal
touch key chip memory error
F7B0 Main Logic Board internal
touch key chip memory error
F800 Main Logic Board memory
error
F810 Main Logic Board memory
error
F820 Main Logic Board EEPROM
memory error
F90x Door Lock Unlock-Home
signal became untrue during
cooking
F91x Door Lock Unlock-Home
signal became untrue during
clean
F92x Both the Lock-Home and
Unlock-Home switches are
closed simultaneously
CORRECTION
a) Check power line for dropouts.
b) Replace RPSM board.
a) Touch fi lm has a short.
b) Main Logic Board fault.
a) Touch fi lm has a short.
b) Main Logic Board fault.
Replace Main Logic Board.
a) Harness to J241 pin 4 open.
b) Replace Main Logic Board if voltage is OK to J241 pin 4.
OR
c) Replace Main RPSM Board if no voltage at RPSM J17 pin
9.
Replace Main Logic Board.
Replace Main Logic Board.
Replace Main Logic Board.
Replace Main Logic Board.
Replace Main Logic Board.
Replace Main Logic Board.
a) Lock motor cam switch faulty/loose.
b) Harness from lock motor to RPSM J16 open.
Note: Control will open/close relay several times trying to
jog the motor.
a) Lock motor cam switch is stuck closed. Replace
assembly.
b) Replace Main RPSM Board.
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