Robur AY, Руководство по установке, использованию и обслуживанию

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Diagnostics
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8
7.1 HYDRAULIC BOILER EMPTYING
Whenever there is a need to empty the boiler, proceed as
follows:
▶
Switch off the boiler by pressing the button.
▶
Only after the water pump has completed its post-cir-
culation cycle, cut off the power supply via the main
switch.
▶
Wait until the boiler has cooled down.
▶
Connect a hose emptying point and connect the other
end of the hose to a suitable drain.
▶
Open the drain tap (Figure 7.1 p. 42).
▶
When all the water has drained off, close the drain tap.
Figure 7.1 Drain tap position
RS Drain tap
RS
8 DIAGNOSTICS
In the event of a malfunction of the appliance, before con-
tacting the TAC, make sure that:
▶
There is a full electricity supply.
▶
The gas is supplied.
▶
The gas pressure is within the indicated limits.
▶
The DDC control (if any) is set so that the appliance is
switched on and the appliance does not display a fault.
8.1 SYSTEM PRESSURE RESTORE
In case of malfunction of the appliance, with pressure in-
side the hydraulic circuit lower than 0,3 bar, which can be
seen through the pressure gauge located on the instru-
ment panel inside the boiler, it is necessary, after having
identified and solved any leaks on the circuit, to proceed
with the restoring the correct amount of water (with gly-
col, if needed), as indicated in Paragraph 3.2 p. 18.
8.2 ERROR CODES
Most faults are generated directly by the MIAH410 boil-
er electronic board and are consequently shown on the
boiler display (and sent to the DDC control, if any), while
faults generated by the CAN-NDG board are sent to the
DDC only (if any).
The faults generated by the boiler board are exclusively
errors (and consequently on the DDC panel, if any, they
will always be displayed as E), either temporary (i.e. with
automatic reset) or permanent (i.e. with manual reset).
For faults requiring manual reset, this can be done by
pressing the reset button
on the boiler or, alternative-
ly, through the appropriate functions of the DDC control,
if any.
Specifically, codes 01, 02, 12 and 41 are reset by the DDC
control via the reset button of the flame controller.
Errors can be blocking (i.e. implying burner shutdown)
or non-blocking. Even with a non-blocking error, it is not
guaranteed that the burner can be switched on in the
event of a service request.
To display the last 5 fault codes, from the most recent
in chronological order, activate the OFF mode using the
key (Figure 6.1 p. 39) until the fixed sym-
bol appears on the display, then press and hold the
key for 5 seconds.
▶
To scroll through the list of stored faults, use the
and keys of the heating side .
▶
To reset the fault history, press the reset key .
▶
To exit the display press the key.
The fault codes listed below are also shown on the DDC
control, if any, by adding the hundreds digit "1" to the
code. The code 01 will then be displayed as 101 on the
DDC control.
Table 8.1
Error codes
Error codes generated by the MIAH410 boiler electronic board (displayed both on the boiler display and on the DDC control, if any)
Code Description Temporary error Permanent error
01 Limit thermostat trip Contact authorised Technical Assistance
02 Flue gas thermostat trip Contact authorised Technical Assistance
09 Ignition failure Reset is automatic up to 3 attempts. NA
NA: Not Applicable