52
12.12 -
Diagnostics
During the normal operation
of the boiler, the display item
PARAMETER
Boiler in stand-by mode or pause (no request for heating or
domestic hot water)
Anti-freeze function active
Boiler not in lock-out mode but in warning
. Turn domestic hot
water to OFF position to reinstate heating. Check that there are no
leaking faucets or pipes. If the problem persists, contact a
professionally qualified technician (see also section 12.6).
System pressure too low, system must be filled. See section
11.1.4.
Domestic hot water service on
Heating service on
Boiler in lock-out mode. To reset it, press the
button. If the lock-out occurs frequently, contact a
professionally qualified technician.
Boiler fault. Contact a professionally qualified technician
Auto-purging procedure that last 2 minutes in progress (see
section 11.1.5).
Boiler in Anti-legionella functioning (see section 12.6)
Boiler temperature (
°
F)
Boiler temperature (
°
F)
01 = Boiler temperature (
°
F) Domestic hot
water service active for more than 120 minutes .
Turn domestic hot water to OFF position to
reinstate heating.
02 = Connection interrupted between
boilers on the battery
No display
Domestic hot water temperature (
°
F)
Heating temperature (
°
F)
Lock-out code (see section 12.12.1 for
decodification).
Error code (see section 12.12.2 for
decodification).
Boiler temperature (
°
F)
Storage tank temperature (
°
F)
12 - USE
1 - Display of the parameters
2 - Display of the paramenters value.
3 - Light indicates the burner state:
Light-on = Burner ON;
Blinking = Burner OFF.
4 - Light indicating DHW service.
Light-on = DHW service ON;
Light-off = DHW service OFF.
5 - Light indicates the decimal.
6 - Light indicates CH service.
Light-on = CH service in function;
Light-off = CH service not function.
Figure 42 - Display of the control board (see also item “31” in figure 1)
DESCRIPTION
INFORMATION ON DISPLAY ITEM
“2” OF FIGURE 42
“31” in figure 1, continually
shows the operating status of
the boiler as shown below
(see also section 16):
Summary of Contents for ONEX
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