Blomberg 8978983800, Service Manual

Page: 36 / 70

BWOS 30100 SERVICE MANUAL
36
boards bus. the board to
board cables.
WHEN A FAILURE OCCURS, THE DISPLAY SHOWS THE WRITING FXX Err, WHEREAS xx IS ONE OF THE ERROR CODES LISTED IN
THE TABLE.
TO RESET THE FAILURE, FIRST THE CAUSE MUST BE REMOVED. THE COOKING MODE AND THE TEMPERATURE SELECTORS
MUST BE TURNED INTO “OFF” AND “PRESET” POSITIONS RESPECTIVELY.
4.2 OVEN NOT OPERATIVE
Anomaly
Possible
Cause
Corrective Action
section
Oven does not run
No power supply
Main breaker or
main fuses
Replace the fuses
Short circuit
Find the short circuit and
remove it
Oven does not run
Power supply ok.
Connections to
Display or the
Power board
Replace power board
7.17
4.3 COOLING FAN PROBLEMS
Anomaly
Possible
Cause
Corrective Action
section
Fan does not run
No power supply
78Ω resistor
broken
Replace 78Ω resistor
7.12
Power board
relay not
switching
Replace Power board
7.17
Fan does not run
Power supply ok.
Blocked rotor
Replace fan
7.2
7.3
Burned coil
Replace fan
7.2
7.3
Noisy fan
Lose
attachment
screws on
cooling
assembly
Check attachment screws on
cooling assembly or replace
fan
7.2
7.3
The cooling fan is
always on
The control is
measuring a
high
temperature
inside the cavity Turn the cooking mode
selector in a cooking mode
position,F01 (F02) should
occur.
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