5
FAULT CODES
ALARM CODE CAUSE
ALARM TYPE
ACTION
_St
AUTOSTOP
Final
Call engineer
_CL
CALL FOR SERVICE
Temporary then final
Call engineer
A01
Ignition failure, flame not sensed,
internal fault, fumes exhaust - air intake
obstruction
Final
Reset, check appliance operation
A02
Limit thermostat fault
Final
Reset, check appliance operation
A03
Fan tacho signal fault
Final
Reset check appliance operation, check fan
A04
Insufficient system water pressure
Final
Check/refill system pressure, reset, check
appliance operation
A06
DHW thermistor fault
Temporary
Check DHW thermistor
A07
Primary (flow) thermistor fault
Temporary
Check primary thermistor, check wiring
Primary (flow) thermistor over temperature Temporary then final
Reset, check appliance operation
Temperature differential
Final
Reset, check appliance operation, check
thermistors
A08
Return thermistor fault
Temporary
Check return thermistor, check wiring
Return thermistor over temperature
Temporary then final
Reset, check appliance operation
Temperature differential inverted
Final
Reset, check pump, ensure there is suf-
ficient circulation around heating circuit/s
A09
Flue thermistor or flue thermistor
counter fault
Temporary
Check flue thermistor counter at power
on, check flue thermistor, check wiring
Flue thermistor over temperature
Final
Reset, check appliance operation
A11
False flame
Temporary
None
A77
Low temperature thermostat fault
Temporary
Check low temperature thermostat
Adj
Calibration
Na
None
ACO
Service operation
Na
None
□□□
Purge cycle mode active
Na
None
P
Preheating function active
Na
None
P
blinking
Preheating function running
Na
None
Flame ON
Na
None
Hours
Stand-by
Na
None
- -
OFF
Na
None
5.1 SETTING THE VOKÈRA MECHANICAL
CLOCK (ACCESSORY)
If your boiler has been installed with the Vokèra mechanical
clock, it can be used and adjusted as follows:
Setting the time
The time of day can be set by grasping the outer edge of the
black dial and turning it in a clockwise direction until the correct
time is in line with the white pointer.
Setting the “switching times”
The
“ON” periods
are set by sliding the black tappets, adjacent
to the time periods required, to the outer edge of the dial.
The tappets that remain at the centre of the dial will be the
“OFF” periods
.
The smallest switching time (ON or OFF) is 15 minutes.
5. SETTING THE VOKÈRA...
4.1 WHAT IF I SUSPECT A GAS LEAK
If you suspect a gas leak, turn off the gas supply at the gas
meter and contact your installer or local gas supplier. If you
require further advice please contact your nearest Vokèra office.
4.2 WHAT IF I HAVE FREQUENTLY TO TOP-UP
THE SYSTEM
If the system regularly requires topping-up, it may be indicative
of a leak. Please contact your installer and ask him to inspect
the system.
4.3 WHAT IF THE APPLIANCE IS DUE ITS AN-
NUAL SERVICE
Advice for tenants only
Your landlord should arrange for servicing.
4. WHAT IF...
Advice for homeowners
Please contact Vokèra Customer Service
(0344 3910999 (UK)
or 056 7755057 (ROI)
if you would prefer a Vokèra service
engineer or agent to service your appliance. Alternatively your
local GAS SAFE registered engineer may be able to service
the appliance for you.
4.4 WHAT IF I NEED TO CALL AN ENGINEER
If you think your boiler may have developed a fault, please contact
your installer or Vokèra Customer Services
(0344 3910999 (UK)
or 056 7755057 (ROI)
have all your details to hand including
full address and postcode, relevant contact numbers, and your
completed appliance log book.
AUTO
ON
OFF
Fig. 4
To select
“AUTO”
mode move the selector switch in central
position.
To select
“ON”
mode move the selector switch in the bottom
position.
To select
“OFF”
mode move the selector switch in the upper
position.
