9.1 Power board fuse replacement
Proceed as indicated below (reserved for qualified technical
personnel only):
• Disconnect the power to the equipment.
• Remove the top cover of the equipment and then the power
board cover.
• Remove the fuse cap, then the fuse, using a suitable screw-
driver.
• Install a new IEC-60127-2/II certified time-delay 5 A fuse
(T5AL250V), then refit the protective cap.
• Reassemble all the plastics and make sure the equipment is
correctly installed before powering it.
fig. 28
9.2 Heating element safety thermostat reset
This equipment has a manual-reset safety thermostat connect-
ed in series with the heating element immersed in water, which
interrupts the power supply in case of overtemperature inside
the tank.
If necessary, proceed as follows to reset the thermostat (re-
served for qualified technical personnel):
• Unplug the product.
• Remove any air ducts.
• Remove the top cover by first undoing the locking screws
(fig. 29).
• Remove the front panel and manually reset the tripped safety
thermostat (fig. 30). In case of intervention, the central pin of
the thermostat comes out by about 2 mm.
Page 32
• Refit the previously removed top cover.
fig. 29- Top cover removal
fig. 30- Front panel removal
User, Installations and Maintenance Manual