5
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Control
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FA ROTEX A1 BO - 10/2007
5.7
Changing the fuse
The fuse is in the switchboard PCB. Fuse type: 250 V, 6.3 AT.
1.
Open boiler control panel and remove all plugs from the switchboard PCB (see chapter 5.4, steps 1 to 4).
2.
Remove the 4 locking screws on the control panel casing using a screwdriver (fig. 5-16).
3.
Remove the top of the casing.
4.
Change the fuse (fig. 5-17).
5.
Replace top of casing.
6.
Insert all connectors on the switchboard PCB. Close boiler control panel.
WARNING!
Live parts can cause an electric shock on contact and cause life-threatening burns and injuries.
• Before beginning work on the oil condensing boiler, disconnect it from the power supply (switch off fuse,
main switch) and secure against unintentional restart.
Fig. 5-16 Remove the locking screws from the
control panel casing
Fig. 5-17 Changing the fuse
If the fuse immediately blows upon switching on again, there is a short circuit in the electrical system.
Have a professional electrician remedy the cause of the short circuit before putting in a new fuse.