Convection Fan Problems; Door Lock Problems - Blomberg BWOS 30100 Service Manual

4.4 CONVECTION FAN PROBLEMS

Anomaly
Fan does not run
No power supply
Fan does Not run
Power supply ok.
Noisy fan

4.5 DOOR LOCK PROBLEMS

Anomaly
Door lock control
does not run
No power supply.
Door lock control
does not run
Power supply ok.
BWOS 30100 SERVICE MANUAL
Possible
Cause
Power board
relay not
switching
Blocked rotor
Burned coil
Lose
attachment
screws on
cooling
assembly
Possible Cause
Power board relay
not switching.
Door micro switch or
door latch micro
switch not switching.
Locked rotor.
Burned coil.
Check all the connections
between the sensor and the
power board
Check the temperature
sensor
Check the power board
Corrective Action
Replace Power board
Replace fan
Replace fan
Check attachment screws
Check nut on working fan for
tightness or replace it
Corrective Action
Replace Power board.
Replace micro switch.
Replace motor.
Replace motor.
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7.17
7.4
7.4
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section
7.17
7.10
7.8
7.8