Control Panel - Ariston microGENUS HE 24 MFFI Installation And Servicing Instructions

E C
FR020A
* Warning the flue analysis mode must only be selected by a
qualified service engineer. See Section 3.4 for further
instructions
DISPLAY
A A 0 0 1 1
No flame after safety time (7 seconds)
The heating flow temperature exceeds 103
A A 0 0 3 3
during operation
Condensate Trap full of water
A A 7 7 7 7
Condensate sensor short circuited
Condensate sensor in open circuit
A A 7 7 5 5
Problem with the flue stat
A A 9 9 7 7
Problem with the electronic monitoring
A A 9 9 8 8
Problem with the electronic monitoring
A A 9 9 9 9
Problem with the electronic monitoring
E E 0 0 2 2
Insufficient water pressure
Domestic hot water temperature probe in
E E 0 0 4 4
open circuit
Domestic hot water temperature probe
E E 0 0 5 5
short circuited
Heating flow temperature probe in open
E E 0 0 6 6
circuit
Heating flow temperature probe short
E E 0 0 7 7
circuited
Heating return temperature probe in open
E E 0 0 8 8
circuit
Heating return temperature probe short
E E 0 0 9 9
circuited
E E 2 2 0 0
Flame detected with gas valve closed
Error in the electrical connection (live and
E E 2 2 1 1
neutral crossed)
The air pressure switch is closed before the
E E 3 3 3 3
ignition sequence has begun
The air pressure switch does not close
E E 3 3 4 4
when the fan runs
More than 5 RESETS of the boiler
E E 9 9 9 9
in 15 minutes.
I J
I I
F
IG
CAUSE
2.10 C
ONTROL
K
L :
EGEND
A - On/Off Button
B - Domestic Hot Water Temperature Adjustment
C - Central Heating Temperature Adjustment
D - Reset Button/Flue Test analysis mode*
E - Comfort Mode Selector
F - Summer Mode LED (Green)
G - Ignition/Overheat Lockout LED (Red)
H - Central Heating (Winter Mode) LED (Green)
I - Digital Display (Fault Code/Water Temperature)
. 2.23
J - Time Clock
K- Central Heating System Pressure Gauge
2.11 D
IGITIAL
The Control Panel has a 3 digit display, during normal
operation the display will show one of six things on the
two right hand digits;
o C
During Stand-by (no demand for Central Heating or D.H.W.)
'on' will be shown on the display and no LEDs will light.
During a demand for Domestic Hot Water, the temperature of
the outgoing hot water is displayed in
summer mode LED will light (F - F
During a demand for Central Heating, the temperature of the
central heating flow will be displayed in
central heating mode LED will light (H - F
During the operation of the flue analysis mode* the
display will show 'sc'.
Should a fault occur the display will show the fault code
and one of two letters, for a non-volatile shutdown the
letter 'A' will be shown followed by the two digit code for
the fault eg. 'A02' and the red LED (G - F
light, a non-volatile shutdown will require the reset button
(D - F . 2.23) to be pressed once before the boiler will
IG
attempt to relight, should the boiler lockout again, the
assistance of an Authorised Service Engineer should be
sought.
Should the boiler develop a fault that cannot be corrected
by resetting the boiler, the letter 'E' will be displayed
followed by a two digit code (e.g. E33) indicating a
volatile shutdown code, in the event of such a shutdown,
the boiler will automatically resume operation once the
cause behind it is resolved. Should it not, the assistance
of an Authorised Service Engineer would be required.
A list of the fault codes can be found opposite.
P
ANEL
D F C
ISPLAY AND AULT ODES
C (e.g. 38) and the
o
. 2.23).
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C (e.g. 65) and the
o
. 2.23).
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. 2.23) will
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21