Bosch WTA34 Series Istruzioni per la riparazione - Pagina 11

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TUMBLE DRYER

Error

Error display

no.

Washing too dry.

Appliance dries for

only 9–13 minutes.

Thermal cut-out B9

has tripped.

Start LED does not

switch to a steady

light, appliance does

not start.

r120085e -15/11

04.99

Possible cause

Wrong programme selected. Customer information:

Short-circuit or shunt circuit

in conductivity system.

Empty drum, dry washing.

Motor is not rotating.

Fan impeller loose.

Fluff filter blocked.

Heater defective.

Door not closed.

Test / Procedure

Select lower degree of

dryness.

Start "Gentle dry" test

program. Do not short-

circuit between the agitator

and drum.

If an error is displayed:

Remove plug-and-socket

connection X11-5 from the

power module:

If an error is still displayed,

then replace the power

module.

If an error is not displayed:

Test the sliding contact

system.Remove

plug-and-socket connection

X11-5 from the power

module and measure the

resistance between Pin 1

and Pin 3 on the plug

(< 500 V). Insulation

resistance > 20 MΩ.

Customer information:

After approx. 9–13 minutes

dryer recognises empty

drum and / or dry washing.

See Error number 7.

Test fan impeller.

Clean fluff filter.

Test heater and cable.