H4-72-02-03
16
For internal use only
7.
Safety precautions during troubleshooting
Before it leaves the factory, every appliance is carefully checked but it must be correctly installed and
operated. In spite of all safety measures, safety depends on correct installation and correct operation
and maintenance by the customer.
Service technicians must never be exposed to the microwave radiation which can be
emitted by the magnetron or other components producing microwaves if the appliance is
not connected correctly or operated improperly. Make sure you observe the following
instructions ”5.1 Safety precautions - microwave energy” on page 9.
7.1
Test program
Activating the test program
The test program can only be carried out when the power network has been reset (max. time after reset
of 5 min.)
The following steps must be taken to activate the test program:
1. Press the clock button.
2. Press 90 W.
3. Press the clock button.
4. Press 900 W.
5. Press the start button.
Acknowledgement appears in the text display, all of the segments light up and a signal will sound.
Acknowledgement of a program start with door open/close or only door close.
Line 1 of the LED display will show “Test” and line 2 will show the software status of the electronic unit.
If the door is opened again line 2 of the display will show “Close door”.
Deactivating the test program
1. Cut off the power supply.
2. Press the stop button for approx. 6 seconds.
3. Do not press any buttons for 10 minutes.
Once the test program has been activated the following tests may be carried out:
• Testing the individual consumers
• Testing the converter
• The debug mode
• Testing the control elements