Viking VCSO210SS Service Manual page 20

VCSO210SS
iNvERTER UNiT TEST
WARNiNG: DO NOT TOUCH THE COMPONENTS OF THE INVERTER UNIT WHILE INVERTER UNIT IS ENERGIZED.
IT IS DANGEROUS BECAUSE THIS HAS HIGH VOLTAGE COMPONENTS.
CAUTiON: DO NOT OPERATE INVERTER UNIT BY ITSELF.
CAUTiON: DO NOT CONNECT THE OVEN TO WALL OUTLET WITHOUT THE OUTER CASE INSTALLED.
Before checking the inverter unit, curry out following 4 steps.
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60 seconds.
4. Make sure that the wire leads and the connectors are connected correctly to the inverter unit, control unit and magnetron.
Chart for checking the defective inverter unit
No power at full power output cooking
Magnetron is defective.
NO
Exchange the Inverter unit
Blown monitor fuse
The secondary interlock switch, primary interlock
switch and the monitor switch are operating properly.
YES
Exchange the Inverter unit
YES
Exchange the magnetron.
NO
Check the switches according to
the switch Test Procedure
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