Unscheduled Maintenance; Malfunction Codes And Possible Solutions - Sime UNIQA REVOLUTION 25 Installations-, Gebrauchs- Und Wartungsanleitung

– open one or more than one hot water tap
– press the button > to make the boiler operate at maximum
power "Hi" and check that the gas pressure values on the
pressure gauges correspond to those indicated in the table
below
– read the combustion parameters (CO
combustion performance
– press the button < to make the boiler operate at minimum
power "Lo" and check that the gas pressure values on the
pressure gauges correspond to those indicated in the table
below. The message "Lo" will appear on the display together
with the flashing symbols
– press the button > once again to make the boiler operate at
maximum power. If the gas pressure values are correct it is
possible to determine the combustion data and take a reading
of the combustion efficiency as provided for by legislation in
force
– press the button y
dure". The boiler water delivery temperature will appear on
the display
– close the taps opened previously and check that the appliance
shuts down
– disconnect the pressure gauges, carefully close the pressure
points (6) and (7), put the control panel back to the original
position and refit the front panel (2).
Gas supply pressure
Type of gas
Pressure (mbar)
Installations with SPLIT and CONCENTRIC flue gas outlet pipe
systems
Model Heat Output
UNIQA REVOLUTION 25
46
particularly) and the
2
l and n
to exit the "Chimney sweeper Proce-
G20 G31
20 37
Pressure at nozzles (mbar)
G20
Max 13,3 - 13,8 35,2 - 35,7
min 2,9 - 3,2 6,1 - 6,5
8.6

Unscheduled maintenance

If replacing the electronic board , the user MUST set the parame-
ters as indicated in the table and in the sequence shown.
Type No.
PAR 01
PAR 02
PAR 03
PAR 04
To enter "Parameter setting and display"refer to the indica-
tions 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
fan are replaced, the user must still carry out the entire phase
of "Automatic calibration procedure" described in the specific
section.
8.7

Malfunction codes and possible solutions

LIST OF MALFUNCTION/FAULT ALARMS
Type No. Fault
Low water pressure in
ALL 02
system
High water pressure in
ALL 03
system
Domestic hot water
ALL 04
sensor fault
ALL 05 Delivery sensor fault
ALL 06 No flame detection
Safety thermostat
G31
ALL 07
intervention
Fault in the flame
ALL 08
detection circuit
No water circulating in
ALL 09
the system
ALL 10 Air inlet probe error
Description
Index showing boiler power in kW
0 = 25
Hydraulic configuration
5 = Low NOx ErP
Gas Type Configuration
0 = G20; 1 = LPG
Combustion configuration
3 = Low NOx ErP APS
Solution
- Restore pressure
- Check for any leaks in the
system
- Empty the system via the
drain valve on the hydraulic
assembly and bring the
pressure to approximately
1.2 bar
- 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 delivery sensor
connections
- Deaerate the system
- Check the bleed valve
- Replace the delivery sensor
- Check that the pump im-
peller 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
pump rotor
- Check the electrical con-
nections
- Replace the pump
- Check the probe
- Check the electrical con-
nection
EN
Setting for
UNIQA REVOLU-
TION 25
-
0
5
0 or 1
3