Unscheduled Maintenance; Malfunction Codes And Possible Solutions - Sime Brava One 40 BF Manuel D'installation Et D'emploi

4.5

Unscheduled maintenance

If replacing the electronic board , the user MUST set the
parameters as indicated in the table and in the sequence shown.
Type No. Description
Index showing boiler power in kW
tS 0.1
2 = 40
Hydraulic configuration
0 = rapid
1 = storage tank with thermostat or
tS 0.2 heating only
2 = hot water tank with sensor
3 = bithermic
4=instant with solar power input
Gas Type Configuration
tS 0.3
0 = G20; 1 = G31
Combustion configuration
0 = sealed chamber with combustion
control
tS 0.4
1 = open chamber with smoke
thermostat
2 = low NOx
To enter "Parameter setting and display"refer to the indications
provided in the specific section.
Once the parameters in the table have been set, you must carry
out the "Automatic calibration procedure".
If the gas valve and/or the ignition/detection electrode and/or the
are replaced, the user must still carry out the entire phase
fan
of "Automatic calibration procedure" described in the specific
section.
4.6

Malfunction codes and possible solutions

LIST OF MALFUNCTION/FAULT ALARMS
Type No. Fault
AL 01 Smoke thermostat
Low water pressure in
AL 02
system
Domestic hot water
sensor fault (return
AL 04
sensor fault for T
models)
AL 05 Delivery sensor fault
AL 06 No flame detection
Sensor or safety
AL 07
thermostat intervenes
Fault in the flame
AL 08
detection circuit
No water circulating in
AL 09
the system
32
Setting
2
0
0 or 1
0
Solution
- Contact the Technical
Assistance Centre
- Restore pressure
- Check for any leaks in the
system
- Check connections
- Check the sensor is
working
- Check connections
- Check the sensor is
working
- Check the integrity of the
electrode and check that it
is not grounded
- Check gas availability and
pressure
- Check the integrity of the
gas valve and the card
- Check the sensor or
thermostat connections
- Deaerate the system
- Check the bleed valve
- Replace the sensor or the
thermostat
- Check that the pump
impeller is not blocked
- Check the integrity of the
electrode and check that it
is not grounded
- Check the integrity of the
gas valve and the card
- Check the rotation of the
pump rotor
- Check the electrical
connections
- Replace the pump
Type No. Fault
AL 10 Auxiliary sensor fault
Gas valve modulator
AL 11
disconnected
Domestic hot water
AL 12 sensor fault in tank
mode
Smoke probe
AL 13
intervention
AL 14 Smoke probe fault
Fan check cable
AL 15
disconnected
AL 18 Condensate level fault
Maximum number of
AL 28 consecutive resets
reached
Return sensor fault
AL 30 (boiler sensor fault for T
models)
Fault due to low
AL 37
network voltage
Incorrect network
AL 40
frequency detected
Flame loss more than 6
AL 41
consecutive times
AL 42 Button fault
Open Therm
AL 43
communication fault
No flame valve opening
AL 44
time sum anomaly
Lock for ∆T delivery/
AL 56 return over max limit
(open vent)
Lock for flow
AL 57 temperature (FT) check
(open vent)
Self-calibrating
AL 62
procedure is required
Incorrect positioning of
AL 72
the delivery sensor
Second delivery sensor
AL 74
fault
EV2 SGV current max/
AL 77 min absolute limits
error
EV2 SGV current upper
AL 78
limit error
EN
Solution
- Check the hydraulic
configuration using "tS 0.2"
- Check the electrical
connection
- Check the electrical
connection
- Set the parameter tS 0.4
(Combustion configuration)
to 0
- Check the sensor is
working
- Replace the smoke probe
- Replace the smoke probe
- Check the electrical
connection of the smoke
probe
- Contact the Technical
Assistance Centre
- Check the connection cable
between the fan and the
board
- Check for any clogging in
the pipe which takes the
condensate to the siphon
- Check that the siphon is not
clogged
- Wait 1 hour and try
unblocking the board again
- Contact the Technical
Assistance Centre
- Replace the return probe
- Check parameters
- Contact the Technical
Assistance Centre
- Check the voltage
- Contact your network
provider
- Contact your network
provider
- Check the ignition/detection
electrode
- Check the gas supply (open
valve)
- Check mains gas pressure
- Check that buttons are
working
- Check the OT electric
connection
- Check for the presence
of water hammer on the
hot water system and, if
present, mount a water
hammer arrestor
- Check for any abnormal
requests on the room
thermostat
- Contact the Technical
Assistance Centre
- Contact the Technical
Assistance Centre
- Contact the Technical
Assistance Centre
- Carry out the self-
calibrating procedure (see
the specific section)
- Check delivery sensor
operation and position
- Check second delivery
sensor operation and
position
- Check gas valve and board
- Check gas valve and board