GE Consumer & Industrial PB978DP1BB, Техническое обслуживание руководство

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Main Logic Board Failure Codes
F-codes are not shown on the display when they occur. They are stored in eeprom and can be retrieved by
pressing the TIMER ON + CLOCK + UPPER START pads together. The display then shows F-cd and prompts
for an UPPER or LOWER selection (1 is the upper oven and 2 is the lower oven). After an oven is selected, a
log is shown. Details of any one of up to 7 stored codes can be recalled by pressing a number pad. Press the
CLEAR/OFF pad to exit. The F-code log can be erased by pressing the 9 and 0 pads together while the log is
showing. (Only the log displayed is erased/cleared.)
Note: For the fi rst 3 minutes after power on, the F-code will show on the display.
Diagnostics and Service Information
F-CODE MEANING CORRECTION
F100 LED error on Burner Touch
Board (when equipped) LEDs on Burner Touch Board operating properly.
Harness/header pins to Burner Touch Board.
F20x Temperature inside oven
cavity exceeds 600°F
with door unlocked a) Welded relay contacts.
b) High resistance in sensor connectors especially at sensor
in rear.
F21x Temperature inside oven
cavity exceeds 900°F
with door unlocked
F30x Shorted oven sensor
(under 950 ohms) a) Disconnect sensor harness from control. Measure
resistance. Should be ~1100 ohms at room temperature
with 2 ohms per degree change.
b) Look for damaged harness terminals/pins if resistance
is OK.
F31x Open oven sensor (over 2950
ohms)
F32x Temperature measurement
circuit redundancy check
within Main Logic Board bad Replace board.
F33x
F40x Meat probe or jack shorted a) Probe should be ~10K ohms at room temperature.
b) Disconnect jack harness from control. Check for shorted
jack or harness. Center pin may be touching insulation
retainer.
F600 LIN comm error within Main
Logic Board a) Check for shorted J241 pin 2.
b) Replace
board.
F610 LIN comm error to slaves, such
as RPSM a) Check LIN wire in harness.
b) Replace RPSM board.
F611 LIN comm error to slaves, such
as RPSM a) Check LIN wire in harness.
b) Replace RPSM board.
c) Replace Main Logic Board.
F612 Line power error detected by
RPSM a) Check power line for dropouts.
b) Replace RPSM board.
F620 LIN comm error to/from RPSM
Aux Board (when equipped) Replace Aux board, especially if Main Board relays still
function.
F621 LIN comm error to/from RPSM
Aux Board (when equipped) Replace Aux board, especially if Main Board relays still
function.
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