Beretta MYNUTE X C Installer And User Manual page 21

DAY
b
If the reset attempts do not activate the boiler, contact the Technical Assistance
Centre.
For fault E041
If the pressure drops below the safety threshold of 0.3 bar the boiler displays the fault code
<<E041 water transducer load the system>> for a transitional time of 30sec.
When the transitional time has finished, if the fault persists the fault code E040 is displayed.
When the boiler has fault E040 manual loading should be carried out using the filling tap (
the pressure is between 1 and 1.5 bar. Then press RESET.
Boiler faults list
ERROR
FAULT
CODE
E010 flame lockout/ACF electronic fault
E011 extraneous flame
E020 limit thermostat
E030 fan fault
E040 water transducer – load system
E041 water transducer – load system
E042 water pressure transducer fault
E060 domestic hot water probe fault
flow sensor fault
E070 flow sensor overtemperature
flow/return sensor differential alarm
E077 main zone water thermostat
return line probe fault
E080 return line probe overtemperature
outlet/return line probe differential alarm
flue gas probe fault
E090
flue gas probe overtemperature
E091 clean primary heat exchanger
E099 reset attempts exhausted, boiler blocked
-- water pressure low check system
-- water pressure high check system
-- boiler board communication lost
-- BUS 485 communication lost
List of combustion faults
ERROR
RED LED GREEN LED
CODE
E021
ON
E022
ON
E023 ON
E024 ON
E067 ON
E088 ON
E097 ON
DAY
DAY
RED LED
ON
flashing 0,2 sec. ON/0,2 sec. OFF
flashing 0,5 sec. ON/0,5 sec. OFF
ON
ON
ON
ON
ON
ON
FAULT
ion alarm
ion alarm
ion alarm
These are temporary alarms that if they occur 6 times in an hour they become definitive; the E097 alarm is displayed and
ion alarm
It is not possible to release the alarm before the end of the post-purging unless the boiler's power supply is switched off.
ion alarm
ion alarm
ion alarm
Close the filling tap, making sure to hear the mechanical snap.
At the end of the procedure, proceed with the automatic vent cycle as described in the section
"3.15 Filling the heating system and eliminating air".
b
If the drop in pressure is very frequent, contact the Technical Assistance Centre.
For fault E060
The boiler is working normally, but does not provide any stability of the domestic hot water
temperature that, in any event, is supplied at a temperature of around 50°C. The intervention
of the Technical Assistance Service is required.
For fault E091
The boiler has an auto-diagnostic system which, based on the total number of hours in
certain operating conditions, can signal the need to clean the primary exchanger (alarm
code E091).
Once the cleaning operation (made with special kit supplied as an accessory) it is necessary
A ) until
to reset to zero the total hour meter following procedure indicated below:
ƒ access the technical parameters as explained in the section "3.20 Access to the
parameters"
ƒ select the CONF menu and then EXHAUST PROBE RESET with the keys
ƒ set the parameter to 1 confirming the selection with
NOTE: The meter resetting procedure should be carried out after each in-depth
cleaning of the primary exchanger or if this latter is replaced.
The total hours can be verified in the following way:
ƒ access the INFO menus as indicated in the paragraph "4.21 INFO menu" at EXHAUST
PROBE RESET to display the value of the flue gases probe meter.
GREEN LED
flashing 0,5 sec. ON/0,5 sec. OFF
It is referred to the last fault occurred
flashing 0,5 sec. ON/0,5 sec. OFF
flashing 0,5 sec. ON/0,5 sec. OFF
DESCRIPTION OF ALARM TYPE
is followed by post-purging for 45 seconds at the fan's maximum speed.
A
Enter .
RED and GREEN LED
ON
ON
flashing 0,5 sec. ON/0,5 sec. OFF
flashing 0,5 sec. ON/0,5 sec. OFF
flashing 0,5 sec. ON/0,5 sec. OFF
ENGLISH
and
DESCRIPTION OF
ALARM TYPE
definitive
transitional
definitive
definitive
definitive
transitional
definitive
transitional
transitional
definitive
definitive
transitional
transitional
definitive
definitive
transitional
definitive
transitional
definitive,
not resettable
transitional
transitional
transitional
transitional
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