Code
Display text
Description/Solution
A02.36
Funct device lost
Functional device has been disconnected:
Run a PCB auto-detect.
Bad connection: check the wiring and connectors.
Faulty SCB PCB: replace SCB PCB
A02.37
Uncritic device lost
Uncritical device has been disconnected:
Run a PCB auto-detect.
Bad connection: check the wiring and connectors.
Faulty SCB PCB: replace SCB PCB
A02.45
Full Can Conn Matrix
Full Can Connection Matrix :
Carry out an auto-detect
A02.46
Full Can Device Adm
Full Can Device Administration:
Carry out an auto-detect
A02.48
Funct Gr Conf Fault
Function Group Configuration Fault:
Carry out an auto-detect
A02.49
Failed Init Node
Failed Initialising Node:
Carry out an auto-detect
A02.69
Fair mode active
Fair mode active
A08.02
Shower Time Elapsed
The time reserved for the shower has elapsed
11.2.2 Blockage
A (temporary) blockage is a status resulting from an abnormal state. The
error code is displayed in the main display and the LED for status
indication flashes red. The control unit makes a number of attempts to
restart. If the cause of blocking persists, the blockage will turn into a fault.
Press the key to remove the warning from the main display.
Important
If the cause of blocking is resolved, the system will restart
automatically.
Blocking codes CU-GH-08
Code
Display text
Description/Solution
H01.00
Comm Error
Communication Error occured:
Restart the boiler
H01.05
Max Delta TF-TR
Maximum difference between flow temperature and return temperature:
No flow or insufficient flow:
Check the circulation (direction, pump, valves)
Check the hydraulic pressure
Check the cleanliness of the heat exchanger
Sensor error:
Check that the sensors are operating correctly
Check that the sensor has been correctly fitted
H01.08
CH Temp Grad. Level3 Maximum CH temperature gradient level3 exceeded:
No flow or insufficient flow:
Check the circulation (direction, pump, valves).
Check the hydraulic pressure.
Check the cleanliness of the heating body.
Check that the installation has been correctly vented to remove air.
Sensor error:
Check that the sensors are operating correctly.
Check that the sensor has been fitted properly.
11 Troubleshooting
7717201 - v03 - 25062019
MID _HMI T-control - Gas 120 ACE
81
