Troubleshooting - Ferroli BLUEHELIX TECH RRT 28 C Instrucciones De Uso, Instalación Y Mantenimiento

Water inlet filter cleaning
• Disconnect the power supply and turn off the gas cock ahead of the valve.
• Isolate the boiler by operating the DHW inlet and system shut-off valves.
• Clean the water inlet filter.

3.4 Troubleshooting

Diagnostics
LCD Off
Make sure that the card is powered: using a digital multimeter, check for the
presence 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. 52.
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
fig. 50
cod. 3541N260 - Rev. 04 - 04/2018
BLUEHELIX TECH RRT 28 C
fig. 51
fig. 52- Fuse housing
EN