Operation Manual
58
De Dietrich Gas 310/610 ECO
14 FAULT-FINDING
14.1 General
• If the boiler does not start up, check the
following:
• Is a 120 V supply present?
• Is there a heat demand?
• Has the boiler control (parameter
) been set
correctly ?(see section 13.1.3)
If the above items have been verified and the boiler
does not start, this indicates a failure. In the case of a
failure signal, both the code window and the
window will flash. Except for failure
(does not
flash).
Important!!
Keep a record of the failure codes before resetting
(numbers, including flashing digits and dots) and quote
them when asking for technical support or consult the
failure code tables in this manual. The failure code is
needed to find the cause of the fault quickly and
correctly. For further details on the various failure
codes and possible causes refer to table 23.
Apart from failure codes (lock-out), the system
also knows shut-off codes (see section 12.4). In the
latter case only the two dots in the
window will
flash and the code window will display
. A shut-off
code may refer to a system problem or incorrect
setting.
14.2 Failure mode () (service level)
The latest failure and corresponding operating
codes and applicable temperatures are stored in the
micro-processor memory and can be read out in
failure mode as follows:
-Enter the service code
(see section 13.2).
-Press the
key until appears in the code window
(digit flashes).
-Select the required step with the
key.
In the above example:
The return temperature sensor is defective (=failure
code
), during burning (= operating code )
with a flow temperature of 127°F [53°C], return
temperature of 104°F [40°C] and a flue gas
temperature of 136°F [58°C]. The boiler block
temperature was 145°F [63°C], the ionization level was
1.8
A, and the boiler had 118026 operating hours and
a speed of 2667 rpm. The time elapsed after the
failure can only be read on a PC or laptop.
14.3 Cooling mode
This mode enables maintenance on the burner and/or
the heat exchanger to be carried out more efficiently.
In this mode, the fan runs at maximum speed for two°
minutes, which cools down the boiler rapidly. When
this mode is active, the system does not respond to
heat demands.
Important!! This mode can only be activated if
there is no heat demand on the boiler. The code
indicates that the mode is active (
for cooling).
The mode is activated by pressing the
and [+] keys
simultaneously (during normal °operating status with n°
heat demand).
The mode can be terminated prematurely by pressing
the [+] and [-] keys simultaneously.
Code
Description
Failure code (see table 19)
operating code, with failure intervention
(section 12.1)
Flow temperature, with failure intervention
Return temperature, with failure intervention
Flue gas temperature, with failure intervention
Boiler block temperature
+
Time from failure (with PC software only)
Ionization level (analog)
operating hours (hundred thousand and ten
thousand)
operating hours (thousands and hundreds)
operating hours (tens and units)
fan speed at failure (thousands and
hundreds)
Fan speed at failure (tens and units)
Table 22 Service level failure mode