User's manual
13
TROUBLESHOOTING AND SAFETY ADVICE
Conditions for stoppage of the appliance
The boiler and heat pump are made safe via internal checks carried out
by the PCBs, which place the appliances on standby if a fault occurs.
A code fl ashes on the display to indicate the cause of the stoppage.
There are several types:
Safety shutdown
The
symbol appears with the fl ashing code.
This is a "VOLATILE" shutdown, which means that it is automatically
removed when the mains supply is cut.
In most cases, as soon as the cause of the stoppage disappears, the
appliance will restart and resume normal operation.
If not, move the external bipolar switch to the OFF position, close the
gas tap and contact a qualifi ed technician.
Note:
if error 1 08 - Stop due to insuffi
cient water pressure - occurs,
simply reset the boiler pressure.
Lockout
On the display, the symbol accompanied by the fl ashing code (e.g.
code
501
).
This is a "NON VOLATILE" shutdown. This means it is not suffi
cient to
simply cut the mains supply before attempting to switch the ignition
back on. It must be unlocked by pushing in key
fully. After
several attempts to unlock it and if it locks again, it may be necessary
for a qualifi ed technician to intervene.
Important
For safety reasons, the boiler will only allow a maximum of 5 unlocking
attempts in 15 minutes (pressing of the RESET key). After this, it is
completely locked. To unlock it, switch the mains supply off and on
using the external bipolar switch.
Table of diff erent causes of locking
Anti-freeze protection function - SYSTEM
The boiler and the heat pump are equipped with a device
which
controls the water temperature at the outlet of each exchanger.
When the temperature drops below the set values, the anti-freeze
protection function is activated.
The function requires the activation of the appliance's circulating pump
and if necessary ignition in heating mode.
The anti-freeze protection function can only operate correctly if:
- the appliances have an electric power supply,
- no safety shutdown or lock is in progress,
- the installation's pressure is correct-
boiler
,
- the system is being supplied with gas -
boiler
.
0DQTXH)ODPPH
Display
Description
1 01
Overheat
5 01
No fl ame
1 03
Water circulation problem
1 04
1 05
1 06
1 07
1 08
Insuffi
cient pressure
3 05
PCB fault
3 06
PCB fault
3 07
PCB fault
No fl ame
