Test Program And Fault Indications - Asko T700 Service Manual

TEST PROGRAM AND FAULT INDICATIONS

TEST PROGRAM
The machine must be in its starting state (obtai-
ned by pressing the main power button).
Short-circuit the outputs ST4-1 and ST4-2.
Start the test program.
T780: Start the condensation water
P1
pump.
or wait for 60 seconds and the test pro-
P2
gram will continue.
Amplified voltage
value from humidity
sensor
The program heats, increasing the temperature
by 14° in max. 10 minutes, then allows it to cool
for 5 minutes (testing that the heating element is
working).
The value detected by the humidity sensor can
vary according to the environment and on
whether there is wet clothing in the tumble drier.
TEST PROGRAM AND FAULT INDICATIONS
FAULT INDICATIONS
Overfill:
Maximum running time: Maximum running
Thermistor fault:
Sensor fault:
Reasons for faults
Open or short circuit in thermistor
Program stops and display shows "Thermistor
fault". The thermistor may have become discon-
nected or have an internal fault. A serviceable ther-
Temperature
measured by
mistor has a resistance of between 60 and 40 kΩ
thermistor
at 20-30°C.
Thermistor not installed in fan housing
The heating element will remain switched in for
as long as the thermistor cannot detect the selec-
ted air temperature. This can lead to an excessive-
ly high air temperature in the drum.
Blocked filter
The overheating protection (150°C) will be trip-
ped and the machine will stop. Reset is manual.
Humidity sensor not installed in fan housing
or control unit
The machine will stop after 20 minutes.
Incoming phase missing
• Error L1, the machine will stop after 20
• Error L2, the machine will not start. Indica-
• Error L3, the machine operates but the run
380V between each phase and neutral
The fan motor stops after a few seconds. Over-
heating protection trips, heating element and con-
trol damaged.
Overfill condensation
water holder.
time achieved, 3 hours.
Thermistor fault.
Fault in humidity
sensor.
minutes. Low heating element power (720 or
600W).
tion lamp not lit.
ning time is too long (low heating element
power (1900W)).
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