Buderus 600 - 11S User Manual page 9

6.4 Operational and fault codes (table 4)
Operating conditions and possible faults are shown on
the display (fig. 10, item 4). The codes consists of two
characters. Press the Service button (fig. 10, item 3) to
display the second character.
All codes not contained in table 4 should be noted down
separately. These are malfunctions that require the
presence of a specialist technician.
Display Display after pressing
the service button
0 A, H, L, P, U, Y
6* A
-. H
=. H
* Flashing after three start-up attempts.
Table 4 Operational and fault codes
Subject to modifications resulting from technical improvements!
Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Fig. 10
Meaning
Boiler is ready for operation
Burner not ignited
Normal heating mode
Normal hot water mode
Operating Instructions
2 3 4
10
1
0
11
KW
I 0 1
1 2
1
10 1
1
10
1
10
Operational and fault codes
Rectification
Press reset button (fig. 10, item 2).
If the burner fails to ignite after
several unblocking operations,
consult a specialist company.
Boulter Buderus Ltd. • http://www.boulter-boilers.com
11
KW
0 1
1 2
5
10
1
10
9