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Service Diagnostics and Procedures–Disassembly
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power to unit using power
switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure
correct earth ground and polarization. After servicing, reconnect power using power switch.
Main Control Board
To access main control board
1.
Slide unit out of service. Remove securing
screws and lower rear cover (see inverter
section step 1, page 54).
2. Remove screws and control box housing.
Control Box Housing
Screw
3. Lift off the housing cover.
Housing Cover
© 2010 Viking Preferred Service
WARNING
4. Disconnect wiring. Press tabs to release main
control board.
5. Repair or replace main control board.
6. Reverse procedure to reinstall.
55
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