Trouble Shooting; List Of Faults - ECR International CCB-150 Installation, Operation & Maintenance Manual

Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault, the display will fl ash indicating the
fault code.
There are faults that cause permanent shutdown (marked with the letter "A"): to restore operation just press the RESET
button (detail 6 - Section 10.4, Control, page 25) for 1 second or RESET on the optional remote timer control if installed;
if the boiler fails to start, it is necessary to fi rst eliminate the fault.
Other faults (marked with the letter "F") cause temporary shutdowns that are automatically reset as soon as the value
returns within the boiler's normal working range.
Table of faults

- List of faults

Fault
Fault
code
A01 No burner ignition
Flame present signal with burner
A02
off
Overtemperature protection
A03
activation
The air pressure transducer does
F05 not receive a suffi cient minimum
value within 25 seconds
A06 No fl ame after the ignition stage
F10 Delivery sensor 1 fault
F11 DHW sensor fault
F14 Delivery sensor 2 fault
A15 Air signal protection activation
F34 Supply voltage under 170V.
F35 Faulty mains frequency
F37 Incorrect system water pressure
F39 External probe fault
A41 Sensor positioning
F42 Heating sensor fault
F43 Exchanger protection activation.
A44
DHW sensor disconnected
A48
Air signal protection activation
F50 Modulation regulator fault
F51 Low water cutoff warning

13 - TROUBLE SHOOTING

Possible cause
No gas
Ignition/detection electrode fault
Faulty gas valve
Ignition power too low
Electrode fault
Card fault
Heating sensor damaged
No water circulation in the system
Air in the system
Incorrect air pressure transducer wiring
Flue not correctly sized or obstructed
Low pressure in the gas system
Burner minimum pressure setting
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
Fault F05 generated 5 times in the last
15 minutes
Electric mains trouble
Electric mains trouble
Pressure too low
Sensor damaged
Probe damaged or wiring short circuit
Probe disconnected after activating the
sliding temperature
Delivery sensor detached from the pipe
Sensor damaged
No system H O circulation
2
Air in the system
Sensor disconnected
Fault F05 for 150 seconds
Wiring disconnected
Pressure too low
Low water cutoff damaged
Cure
Check the regular gas fl ow to the boiler and that the air has
been eliminated from the pipes
Check the wiring of the electrode and that it is correctly
positioned and free of any deposits
Check the gas valve and replace it is necessary
Adjust the ignition power
Check the ionisation electrode wiring
Check the card
Check correct heating sensor positioning and operation
Check the circulating pump
Vent the system
Check the wiring
Check the length of fl ue and that it is clean
Check the gas pressure
Check the pressures
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring or replace the sensor
See fault F05
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or replace the sensor
Reconnect the external probe or disable the sliding
temperature
Check correct heating sensor positioning and operation
Replace the sensor
Check the circulating pump
Vent the system
Check the correct positioning and operation of the DHW
sensor.
See Fault F05
Check the wiring
Fill the system
Check the contact
37