Harvia SENTIO Professional B3 Instructions For Installation And Use Manual page 74

Instructions for installation and use p. 36/38
12.2. Low-water display
The sauna control unit features an automatic low-water shut-off feature which is
active in combi mode, as long as your combi heater supports it.
If the water tank in the evaporator is empty, this is indicated by a recurring warn-
ing tone and the text "FILL" appears in the humidity display . The evaporator
1
switches on at the same time.
● Pour water into the water tank in the evaporator.
► After a short period, the text "FILL" goes out and the evaporator starts
heating up again.
12.3. Fuses
Fuses for light, fan/power expansion and electronics as well as a spare fuse are
located in the sauna control unit's connection area.
These are 1A time delay micro fuses.
They can be ordered using the item number PRO-FUSE.
Light Electronics Fan/power expansion Spare fuse
In order to replace the fuse, pull the fuse link straight out and insert the new fuse.