Bosch WTA34 Series Repair Instructions - Page 10

Browse online or download pdf Repair Instructions for Dryer Bosch WTA34 Series. Bosch WTA34 Series 15 pages. Vented tumble dryer

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TUMBLE DRYER
Error
Error display
no.
Re 8
9
Heater continuously
on.
(Dryer not started.)
10
– Washing not drying
properly,
– Too damp.
r120085e -15/10
04.99
Possible cause
D
Power module defective.
E
Excessive contact
resistance in sliding contact
system.
A
Heater defective.
B
Power module defective.
A
Wrong programme selected. Customer information:
B
Door switch or power
module defective.
C
Excessive contact
resistance in conductivity
system.
Test / Procedure
Start "BW cupboard dry"
test program.
On the power module
measure the drive voltage
(mains voltage) for heater
E1, 2, 3.
See Error number 11 E.
Test heater and cable.
See Error number 8 C.
Select higher degree of
dryness.
See Error numbers 15 A
and 15 B.
Start "Gentle dry" test
program. Short-circuit
between the agitator and
drum.
If an error is displayed:
Test sliding contact system
and internal contact
between agitators for
continuity.
Max. 1 kΩ between agitator
and Pin 3 on the plug.
Max. 1 kΩ between drum
and Pin 1 on the plug.
If resistance is o.k.:
Repeat test program, with
jumper between plug-and-
socket connection X11-15.1
and X11-15.3. If there is no
error display, do not replace
the power module.