Common Problems - Asko T7OO Series Service Manual

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COMMON PROBLEMS

Th e w a sh i n g w i l l n o t d r y Th e w a sh i n g w i l l n o t d r y Th e w a sh i n g w i l l n o t d r y. . . . .
Th e w a sh i n g w i l l n o t d r y Th e w a sh i n g w i l l n o t d r y
Th e m a ch i n e o n l y r u n s f o r 2 0 m i n u t e s. Th e m a ch i n e o n l y r u n s f o r 2 0 m i n u t e s. Th e m a ch i n e o n l y r u n s f o r 2 0 m i n u t e s. Th e m a ch i n e o n l y r u n s f o r 2 0 m i n u t e s. Th e m a ch i n e o n l y r u n s f o r 2 0 m i n u t e s.
1. Check the main power fuse.
2. Make sure the dryer wasn't overheated due to
lint blocking the filter, condenser unit or fan
housing.
3. Model T 780: Overfilling. (T he display shows
"Fault indication, filling.")
4. Possibly , the machine did not reach the measured
value of 1.8 mV within 15 minutes. T his could
be due to:
a. Incorrect connection to single phase – too
low heating element power (720 or 600 W)
b. Incorrect connection of element to control
unit
c. Incorrect connection in element terminal
block
d. Humidity sensor not located in fan housing
e. Faulty humidity sensor
f. Heating element open circuit
5. Check the drive belt for the following:
a. Improperly located on the motor pulley.
b. Improperly located on idler pulley.
c. Twisted.
O ve r h e a t p r o t e ct i o n t r i p p e d e ve n t h o u g h O ve r h e a t p r o t e ct i o n t r i p p e d e ve n t h o u g h O ve r h e a t p r o t e ct i o n t r i p p e d e ve n t h o u g h O ve r h e a t p r o t e ct i o n t r i p p e d e ve n t h o u g h O ve r h e a t p r o t e ct i o n t r i p p e d e ve n t h o u g h
l i n t f i l t e r a n d co n d e n se r u n i t h a ve b e e n l i n t f i l t e r a n d co n d e n se r u n i t h a ve b e e n
l i n t f i l t e r a n d co n d e n se r u n i t h a ve b e e n l i n t f i l t e r a n d co n d e n se r u n i t h a ve b e e n l i n t f i l t e r a n d co n d e n se r u n i t h a ve b e e n
cl e a n e d . cl e a n e d .
cl e a n e d . cl e a n e d . cl e a n e d .
1. Check for lint in the internal fan wheel.
2. Clean the air ducts and behind the element.
3. Check for a fault in the control unit
O v e r f i l l i n g f a u l t i n d i ca t i o n , e v e n t h o u g h O v e r f i l l i n g f a u l t i n d i ca t i o n , e v e n t h o u g h O v e r f i l l i n g f a u l t i n d i ca t i o n , e v e n t h o u g h O v e r f i l l i n g f a u l t i n d i ca t i o n , e v e n t h o u g h O v e r f i l l i n g f a u l t i n d i ca t i o n , e v e n t h o u g h
t a n k i s e m p t y t a n k i s e m p t y t a n k i s e m p t y t a n k i s e m p t y. . . . . t a n k i s e m p t y
Condenser water pump could be blocked or burned
out. If the pump is burned out, an associated fault
will be burned wiring in the control unit. Always
check first if the condenser water pump has burned
out before installing a new control unit.
14
Th e m a ch i n e sh o w s t h e m a xi m u m p r o g r a m Th e m a ch i n e sh o w s t h e m a xi m u m p r o g r a m Th e m a ch i n e sh o w s t h e m a xi m u m p r o g r a m
Th e m a ch i n e sh o w s t h e m a xi m u m p r o g r a m Th e m a ch i n e sh o w s t h e m a xi m u m p r o g r a m
t i m e f a u l t i n d i ca t i o n . t i m e f a u l t i n d i ca t i o n . t i m e f a u l t i n d i ca t i o n . t i m e f a u l t i n d i ca t i o n . t i m e f a u l t i n d i ca t i o n .
T his indicates that the machine has been running
for the maximum time that the control unit is
allowed (> 3 hours) .
Several things could cause this. (It could be one of
these items or a combination.)
1. Check the main power fuse.
2. Make sure the dryer wasn't overheated due to
lint blocking the filter, condenser unit or fan
housing.
3. Make sure the dryer isn't incorrect connected to
a single phase, 15A.
4. Check that the external air isn't restricted or
blocked, resulting in poor condensation.
5. A high ambient temperature + low heating
element power + low drying temperature could
result in poor condensation.
6. A low ambient temperature + low heating
element power + low drying temperature makes
it difficult to get the dampness out of the
clothes.
7. It's possible the washing was spun dry at low
speed (i.e., less than 800 rpm), which would
make it difficult to dry the washing.
8. T he washing possibly was taken out before the
program was complete and the machine was
loaded with a new batch of washing. In this case,
the control unit probably would not have time
to reset itself and the remaining program time
was added to the next drying cycle.
9. Check the humidity sensor, its wiring and
connections.