Troubleshooting - Ferroli BLUEHELIX TECH RRT 28 С Instructions For Use, Installation And Maintenance

Flowmeter
• Disconnect the power supply and close the gas tap upstream of the valve.
• Close the cold water inlet and turn on the DHW system faucets
• Release the fork "4" and remove the flowmeter assembly "5".
• The flowmeter components can thus be replaced.

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. 47.
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.
186
4
fig. 46- Flowmeter
cod. 3541N260 - Rev. 01 - 10/2017
BLUEHELIX TECH RRT 28 C
1 - Flow-rate restrictor
2 - Fan
3 - Filter
4 - Clip
5 - Flowmeter
1
2
3
fig. 47- Fuse housing
EN