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Fault diagnosis
2016-03-10 / DIS 184_58300000140186_ara_en_k
Copyright by BSH Hausgeräte GmbH
Page 49 of 181
Fault
Possible cause
Troubleshooting
Wave guide / magnetron defective.
► Replace 8A fuse.
► Pull CN703 plug from Neo inverter.
► Start operating the microwave.
0
If the 8A fuse was
not
blown,
► Check the wave guide visually.
► Replace wave guide if defective.
►
Check the magnetron. (Page 79)
►
Replace the magnetron if defective. (Page 158)
0
If the 8A fuse is blown
again
,
► Replace 8A fuse.
► See "Neo inverter and/or magnetron defective".
Neo inverter and/or magnetron defective.
►
►
►
Replace Neo inverter if defective. (Page 159)
►
Replace magnetron if defective. (Page 158)
0
If Neo inverter and magnetron are OK,
► see "Short-circuit switch and/or primary switch defective".
No microwave output / 8A fuse was blown
Short-circuit switch and/or primary switch
defective.
-
The short-circuit switch must have continuity when the door is
closed
.
-
The primary switch must have continuity when the door is
open
.
► Check the short-circuit switch and the primary switch.
► Replace the short-circuit switch
and
the primary switch if defective.
Folding panel only opens partially
Not a fault.
► Advise customer:
After actuating the symbol "
Open panel
", the folding panel is only automatically
opened to form a gap and must be pulled forward manually with both hands and
then slid upwards until it locks into place.
Folding panel opens at an angle
Not a fault. Due to construction.
► Advise customer:
After actuating the symbol "
Open panel
", the folding panel is only automatically
opened to form a gap and must be pulled forward manually with both hands and
then slid upwards until it locks into place.
Folding panel does not close
automatically
Not a fault.
► Advise customer:
The folding panel can only be closed by hand, and must be pulled downwards
manually, using both hands and slowly, and then slid backwards until it is
completely closed.
Cooling fan overruns for too long
(KI01 to KI04 and CPM with software
status 0022 and 0026)
Cooling fan overrun is not optimised with
this software status.
► Flash CPM to software status ≥ 0027.