Installation, use and maintenance
M0546
48 /6 0
20.3 CHECK AND REPLACEMENT OF FUSES
For checking and replacing fuses on electronic boards:
1 Cut the unit off the power supply;
2 Open the CUBE B.SMART door by loosening the 2 side screws to access
the controller
3
Loosen the screws of the metal rear cover to access the compartment of the
electronic boards
4 Check the condition of the 3 fuses and replace them if necessary
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