BLUEHELIX TECH RRT 28 C
188
EN
cod. 3541N260 - Rev. 01 - 10/2017
F39
External probe fault
Probe damaged or wiring shorted Check the wiring or replace the sensor
Probe disconnected after activat-
ing the sliding temperature
Reconnect the external sensor or disable the slid-
ing temperature
F41
Activation of maximum DELTA T
protection
Heating sensor damaged
Check the correct positioning and operation of
the heating sensor
Return sensor damaged
Check the correct positioning and operation of
the return sensor
No water circulation in the system Check the circulating pump
Air in the system
Vent the system
F42
A42
Sensor control protection activation
Heating sensor damaged
Check the correct positioning and operation of
the heating sensor
Return sensor damaged or dis-
connected
Check the correct positioning and operation of
the return sensor
F43
Exchanger protection intervention.
No system H
2
O circulation
Check the circulating pump
Air in the system
Vent the system
A23
A24
F15
F20
F21
A26
F40
F47
F50
F51
F53
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify it if neces-
sary
F56 - A56
Calibration fault
Incorrect parameters
Check parameters and carry out a 100% calibra-
tion
Electrode damaged or not cor-
rectly positioned.
Check the position of the electrode, replace it if
necessary. After replacement, repeat the 100%
calibration
Calibration procedure not com-
pleted
Poor primary circuit circulation or
poor elimination
Reset the fault. Turn the hot water faucet and
wait for the flame to stop flashing (about 2 min-
utes)
F61 - A61
Controller AGC01 fault
Controller AGC01 internal error
Check the earth connection, the electrode and
replace the controller if necessary
A54 - A55 - A63
Controller AGC01 fault
Controller AGC01 internal error
Try and disconnect the power supply to the boiler
for 10 seconds and replace the controller if nec-
essary
F67 - F68 - A68
BCC Service key error
BCC Service key connected
When finished, remove the BCC Service key
device
Error loading BCC Service key
file
Repeat the procedure and replace the BCC Serv-
ice key if necessary
A62
No communication between con-
troller and gas valve
Controller not connected
Connect the controller to the valve
Valve damaged Replace valve
Check the wiring or replace the valve
A64
Maximum number of consecutive
Resets exceeded
Maximum number of consecutive
Resets exceeded
Disconnect the power supply to the boiler for 60
seconds and then reinstate the boiler
F66
Firmware not loaded successfully Reload the firmware or replace the card
Fault code
Fault
Possible cause
Cure
