Operating Instructions WBL-118 Refrigerated bath and circulator
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4.3 Checking and replacing the fuse (Fig 5)
With the mains plug connected and power switch in
“
on
”
position and if no LED and digits display,
check the fuse first. If any doubt that checking and replacing fuse is necessary, use a fuse with
the same size and capacity as rated and do as follows:
1) Make sure the mains plug has been removed;
2) Unloosen the two screws on the top and 4 screws at the back of the controller as shown in Fig
5. Remove the cove plate and check or replace the fuse;
3) Replace the cover and fasten the six screws.
Do not disassemble or exchange assembly parts and electric circuits! Hazard of
possible electric shock!
Except for replacing the fuse, there is no other part necessary for customer to
disassemble or repair. If repairing is desired, contact with authorized engineer.
Always remove the mains plug from the power socket when performing checking or
replacing the fuse, and never use any fuse different from the original one. Secure the
fuse once checked or replaced. For servicing or maintenance, call authorized service
engineer.
Fig 5 Checking and replacing
the fuse
1
Main fuse (10A)
2
Terminal for Pt100
357
