Possible Faults And Solutions - Sime BRAVA ONE HE 25 Manual De Instalación Y Mantenimiento

To enter "Parameter setting and display"refer to the indica-
tions in the relevant section.
Once the parameters in the table have been set, you must car-
ry out the entire phase of "Commissioning".
4.6

Possible faults and solutions

LIST OF MALFUNCTION/FAULT ALARMS
Type No. Fault
Low water pressure in
AL 02
system
Domestic hot water
AL 04
sensor fault
AL 05 Delivery sensor fault
AL 06 No flame detection
Sensor or safety ther-
AL 07
mostat intervenes
Fault in the flame de-
AL 08
tection circuit
No water circulating in
AL 09
the system
Gas valve modulator
AL 11
disconnected
Incorrect configuration
AL 12 of the open /sealed
chamber
Fan check cable discon-
AL 15
nected
Fault regarding maxi-
mum deviation between
AL 17
the 2 NTC heating
sensors
Maximum number of
AL 28 consecutive releases
reached
Fault due to low network
AL 37
voltage.
Incorrect network fre-
AL 40
quency detected
Flame loss more than 6
AL 41
consecutive times
AL 42 Button fault
78
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Type
Solution
- Restore pressure
- Check for any leaks in
the system
- Check connections
- Replace the sensor
- Check connections
- Replace the sensor
- 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 con-
nections
- 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 gas availability
and pressure
- Check the integrity of
the gas valve and the
card
- Check the rotation
of the system pump
impeller
- Check the electrical
connections
- Replace the pump
- Check the electrical
connection
- Set the parameter tS
0.4 (Combustion confi-
guration) to 0
- Check the connection
cable between the fan
and the board
- Replace the dual
sensor
- Contact the Technical
Assistance Centre
- Check with tester
- Contact network provi-
der (ENEL)
- Contact network provi-
der (ENEL)
- Check the detection
electrode
- Check the gas supply
(open valve)
- Check mains gas
pressure
- Check that buttons are
working
No. Fault
Fault in the 2nd element
AL 74
of the delivery sensor
Block due to combustion
AL 81
during start-up
Irregular combustion
AL 83
(temporary error)
Block due to clogging in
AL 96
smoke outlet
Frequent relief valve
- -
intervention
Limited production of
- -
domestic hot water
EN
Solution
- Replace the sensor
- Check for blockage in
chimney
- Bleed the air from the
gas circuit
- Check for blockage in
chimney
- Check for blockage in
chimney
- Check circuit pressure
- Check expansion
vessel
- Check the diverter
valve
- Check that plate heat
exchanger is clean
- Check domestic hot
water circuit valve