This fuse is specifically used in Balboa BP100 spa control systems, location is F3 on the circuit board.
- F3 fuse rated at 0.1 AMPS, used when the heater is configured to 240V
- 250 Volts
- Slow Blow
- Size: 5mm diameter x 20mm length
If the F3 fuse needs replacing it should always be replaced with a fuse of the same rating and never a fuse that has a higher amp rating in order to protect the circuit board.