Troubleshooting - Ferroli BLUEHELIX 352 RRT 24 C Instructions For Use, Installation And Maintenence

3.4 Troubleshooting

Diagnostics
LCD Off
Make sure that the card is powered: using a digital multimeter, check for the pre-
sence of supply voltage.
In case of no voltage, check the wiring.
If the voltage is sufficient ( Range 195 – 253 Vac ), check the fuse
(3.15AL@230VAC). The fuse is on the card. To reach it, see fig. 19 and fig. 51.
LCD On
In case of operating problems or trouble, the display flashes and the fault identification code appears
There are faults that cause permanent shutdowns (marked with the letter "A"): to restore operation it is sufficient to press
the reset button (detail 6 - fig. 1) for 1 second or use the RESET on the remote timer control (optional) if installed; if the
boiler does not restart, it is necessary to, firstly, eliminate the fault.
Other faults cause temporary shutdowns (marked with the letter "F") which are automatically reset as soon as the value
returns within the boiler's normal working range.
194
BLUEHELIX PRO RRT 24 C
cod. 3541Q530 - Rev. 01 - 07/2020
fig. 51- Fuse housing
EN