User Manual
4
SAFETY
Please remember that it is wiser not to attempt a service task if you are unsure of being able to complete it competently,
quickly, and above all safely.
To avoid injury to you, and to protect the appliance from possible damage, please follow this Safety Code when servicing
these ovens.
Before attempting to repair the oven, check it for microwave leakage.
Check that the oven is not emitting microwaves, even when supposedly not in operation.
Check that the oven is not operating continuously, whether the display indicates cooking or not.
Always discharge the HT capacitors before working on the oven using a suitably insulated 10 M ohm
Resistor.
Before removing any covers from the oven, do all of the following.
•
Switch off the mains supply and remove the plug from the wall socket.
or
•
If the oven is hard wired, ensure that the power is turned off at the isolator switch.
Note:
The On/Off switch on the oven is not adequate protection against electric shock, as it does not
isolate all of the internal wiring from the mains.
Upon completion of a service on a Mealstream oven, or before reconnecting the appliance to the electrical supply for
testing, check all of the following points:
•
All internal electrical connections are correct (see wiring diagram Pages xxxxxx).
•
All wiring insulation is correct and is not touching a sharp edge.
•
All Earth connections are electrically and mechanically secure.
•
All door safety interlocks are secure and mechanically sound.
•
The door operation is smooth, and the arms run freely in the slots.
•
The door activates all three of the door interlock switches in the correct order (see pages xxxx).
•
The temperature sensor is correctly connected to the Power PCB.
efore finishing the service call, recheck the following points:
•
All of the electronics are functioning correctly, and all of the touch pads are working.
•
The power output of the oven is correct.
•
Microwave emission is below permissible limit - 4 mW/cm².
•
Oven has correct 2 inch ( 50mm ) air gap all round and 2 inch ( 50mm ) above.
Airflow should not be restricted.