Safety Stop - Riello Vokera EASI-HEAT i User Instructions

Reset function
To reset boiler operation in the event of a fault, press:
10
A
If the correct operating conditions have been restored, the
boiler will start up again automatically. In the presence of a re-
mote control, a maximum of 5 consecutive unlocking attempts
are available. In this case, by pressing
the initial attempts.
b
If the attempts to reset the boiler do not work, contact
the Technical Assistance Centre.
FAULT A41: if the pressure value falls below the 0.3 bar sa-
fety value, the boiler shows the fault code A41 for a transitory
time of 10 min. If the fault still persists after this time, fault
code A40 will appear.
A 4 1 4
With fault A40 on the boiler it is necessary to top-up the sy-
stem pressure in the following way:
- locate the filling valve connections (usually beneath the boiler,
see figure below)
- attach the filling loop to both connections
- open the filling valve slowly until you hear water entering the
system
- close the filling valve, access the Info menu ("5.34 INFO
menu", item I018) to check that the pressure value reaches
1-1.5 bar
- remove the filling loop from the connections.
control valve
temporary
connection
ow pipe
ERROR CODE
A10
A11
A20
A30
A40
A41
A42
A60
A70
A80
A90
A91
A58
A59
CFS
SFS
FIL
>3.0 bar
28
Res
Res
> 2 sec
the boiler restores
A 0
control
valve
double
check- valve
supply
pipe
ERROR MESSAGE
Flame lockout
Condensate drain obstructed
Flue gas exhaust/air suction obstructed
Extraneous fl ame
Limit thermostat
Fan fault
Fill the system
Fill the system
Pressure transducer fault
DHW probe fault
Flow sensor fault
Flow sensor overtemperature
Flow/return sensor diff erential
Return probe fault
Return probe overtemperature
Return-fl ow sensor diff erential
Flue gas probe fault
Clean primary heat exchanger
Low power supply voltage
High power supply voltage
Call Service
Stop for Service
Low pressure - check system
High pressure - check system
Press to restore operation. After filling, run a venting cycle.
If the pressure drop is very frequent, contact the Technical
Assistance Centre.
Fault A60: indicates a fault on the DHW probe; notwithstan-
ding this, the appliance will continue to provide hot water at ap-
proximately 50°C. The intervention of the Technical Assistance
Centre is required.
Fault A91: the boiler has a self-diagnosis system that si-
gnals the need to clean the primary heat exchanger on the
basis of the total number of hours in certain operating con-
ditions (alarm code A91). Fault A91 occurs when the counter
exceeds the value of 2500 hours; this value can be checked in
the "5.34 INFO menu", item I015 (visualization/100, example
2500h = 25).
After cleaning (using the special kit supplied as an accessory),
reset the total hours counter by bringing parameter 312 = 1.
NOTE: The meter resetting procedure should be carried out after
each in-depth cleaning of the primary exchanger.

5.26 SAFETY STOP

If faults arise during ignition or operation, the boiler makes a
"SAFETY STOP". The display shows the error code in ques-
tion. For the details, refer to "5.25 Faults and reporting".
Reset function
Contact the local Technical Assistance Centre if the reset
attempts fail to reactivate normal operation.
10
A
DESCRIPTION OF TYPE OF ALARM
Res
Res
> 2 sec
defi nitive
transitional
defi nitive
defi nitive
defi nitive
transitional
defi nitive
transitional
transitional
defi nitive
defi nitive
transitional
defi nitive
defi nitive
transitional
transitional
transitional
transitional
signal
defi nitive
signal
signal