Conducting an appliance self-test
Your appliance has an appliance self-test which displays faults that can be eliminated by your customer service.
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Within the first 10 seconds after switching on, press and hold
3 to 5 seconds.
The appliance self-test starts.
While the appliance self-test is running, a long audible signal sounds.
If, at the end of the appliance self-test, two audible signals sound and the temperature display indicates the set temperature, your appliance is OK. The appliance switches to normal operation.
If, at the end of the appliance self-test, 5 audible signals sound and
flashes for 10 seconds, inform customer service.