Settings
61
Boiler Protection Devices
GB
Appliance shut-off conditions
The boiler is protected from malfunctions by means of internal
checks performed by the electronic P.C.B., which stops the boiler from
operating if necessary. In the event of the boiler being shut off in this
manner, a code appears on the control panel display which refers to
the type of shut-off and the reason behind it. Two types of shut-off
may occur:
Safety shut-off
This type of error is “volatile”, which means that the boiler starts up
again automatically as soon as the problem which caused the shut-
off is removed; Err” and the error code (es.
Err
/
108
) flash on the
display and the
symbol appears.
In fact, soon as the cause of the shut-off disappears, the boiler starts
up again and continues to operate normally.
If the boiler still indicates a safety shut-off, switch it off. Make sure the
external electric switch is in the OFF position, shut off the gas valve
and contact a qualified technician.
N.B. if error 1 08 - Stop due to insufficient water pressure - occurs,
simply reset the boiler pressure.
Operation shutdown
This type of error is “non-volatile”, which means that it is not removed
automatically.
On the display flash
Err
and the error code (es.
Err
/
501
). and
appears RESET whit the symbol .
In this case the boiler does not restart automatically, but it may be
reset by pressing the RESET button.
If the problem manifests itself again after several attempts to reset the
appliance, contact a qualified technician.
Important
For safety reasons, the boiler will allow a maximum of 5 reset
operations to take place in 15 minutes (individual presses of the
RESET button).
The first figure of the error code (e.g.
101
) indicates within which
operational assembly the error occurred.
1 - Primary Circuit
- Domestic Hot Water Circuit
- Internal Electronic Part
4 - External Electronic Part
5 - Ignition and Detection
6 - Air inlet - flue gas outlet
7 - Multizone
Anti-frost Device.
The anti-frost function acts on the central heating flow temperature
probe, independently from other settings, when the electrical supply
is turned on. If the primary circuit temperature falls below 8°C the
pump will run for 2 minutes.
After the two minutes of circulation (fixed) the boiler will check the
following:
a - if the central heating flow temperature is > 8°C, the pump stops;
b - if the central heating flow temperature is between 4 and 8°C, the
pump will run for another two minutes;
c - if the central heating flow temperature is < 4°C, the burner will fire
(heating position) at minimum power until the temperature reaches
33°C, the burner will go off and the pump will continue to run for two
minutes.
If the boiler is fitted with a tank, a second device controls the
temperature of the domestic hot water. If this drops below 8°C,
the distributor valve switches to domestic water position and the
burner operates until the temperature reaches 12°C. This followed
by a post-circulation cycle of 2 minutes.
The anti-frost device activates only when (with the boiler operating
correctly):
- the system pressure is correct;
- the boiler is electrically powered, the symbol is illuminated;
- there is a supply of gas
- no safety shutdown or lockout is in progress
.
Table summarising error codes
Central Heating circuit
Display Description
1 01
Overheat
1 02
Pressure Sens Error
1 03
Insufficient circulation
1 04
1 05
1 06
1 07
1 08
Insufficient water (request filling)
1 09
System pressure > 3 bar
1 10
C.H. Flow temp. probe circuit open / short circuit
1 12
C.H. Return temp. probe circuit open / short circuit
1 14
External sensor circuit open / short circuit
1 18
Heating delevery probe problem
1 P1
Insufficient circulation indication
1 P2
1 P3
1 P4
Insufficient water (request filling)
D.H.W circuit
2 01
D.H.W. temp. probe circuit open / short circuit
2 02
Bottom storage temperature probe open / short circuit
2 03
Tank sensor probe open/short circuit
2 04
Solar collector temperature probe open / short circuit
2 07
Solar collector overheating
2 08
Collector frost protection temperature
2 09
Tank overheating
Internal P.C.B’.s
3 01
EEPROM error
3 02
Comunication error
3 03
Main P.C.B. error
3 05
Main P.C.B. error
3 06
Main P.C.B. error
3 07
Main P.C.B. error
3 P9
Maintenance recommended
External P.C.B’.s
4 07
Room sensor circuit open 7 short circuit
Ignition and Detecion
5 01
No flame detected
5 02
Flame detected with gas valve closed
5 P1
1st Ignition Failed
5 P2
2nd Ignition Failed
5 P3
Flame cut-off
Air Inlet / Flue gas outlet
6 05
Flue-gas sensor open short circuited
6 09
Flue-gas overheating
6 10
Thermal fuse open
Multi-zone Heating (Heating Zone Modules - optional)
7 01
Zone 2 outgoing sensor defective
7 02
Zone 2 return sensor defective
7 03
Zone 3 outgoing sensor defective
7 04
Zone 3 return sensor defective
7 05
Hydraulic separation sensor defective
7 06
Zone 2 overheating
7 07
Zone 3 overheating
