Install Instructions

Readings on the display | 75
6 720 806 992 (2013/09)Greenstar
16 Readings on the display
The boiler display can provide the following information (Tab. 36
and 37):
Value displayed Description Range
Number or letter, dot
followed by letter
Service function
( Tab. 28 / 29, page 58)
Letter followed by
number or letter
Fault code
( Tab. 38, page 77) (exception:
b.A = service function)
Three numbers (199) Decimal value, e.g. supply
temperature
00..199
One number (displayed
for longer) followed by
two numbers (displayed
briefly)
Decimal figure (three digits); first
digit is shown alternating with two
last digits
(e.g. 2.69..69 for 269)
0..999
Two dashes followed by
two pairs of numbers
Code is shown in three stages: 1.
Two dashes 2. First two
digits 3. Last two digits
(e.g. -- 10 04)
1000 ...
9999
Two letters followed by
two pairs of numbers
Code is shown in three stages: 1.
Two letters 2. First two
digits 3. Last two digits
(e.g. CF 10 20)
Table 36 Display readings
Status code Description
Acknowledge by pressing any button (except reset).
Acknowledge by pressing two buttons
simultaneously
Acknowledge by pressing and holding for more than
3 seconds (Save function).
The display shows the supply temperature in alternation
with . The appliance works for 15 minutes at the
minimum nominal output,  service function 2.F.
The display shows the supply temperature in alternation
with . The appliance works with the set maximum
output in heating mode,  service function 1.A.
The display shows the supply temperature in alternation
with . The appliance works for 15 minutes at the
maximum nominal output,  service function 2.F.
The air purging function is active,  service function
2.C
The display shows the supply temperature in alternation
with . The trap filling sequence is active,  service
function 4.F.
The display shows the supply temperature alternating
with : Service reminder,  service function 5.A.
The display shows the supply temperature in alternation
with . The pump may have seized,  fault E.9.
The display shows the supply temperature in alternation
with . The temperature gradient limiter was
triggered. Excessive supply temperature increase:
Heating mode is suspended for two minutes.
Slab drying function of the FW200 outdoor reset control
( operating instructions) or building drying function
( service function 7.E) are activated.
Key pad lock enabled. To unlock the key pad, press
until the supply temperature is shown on the
display.
Table 37 Special displays