Sime GIULIA SYSTEM 25 User Manual

50
Type No. Fault Solution
AL 40
Incorrect supply
frequency detected
- Contact your network
provider
AL 41
Flame loss more than
6 consecutive times
- Check the ignition/
detection electrode
- Check the gas supply
(open valve)
- Check mains gas pressure
AL 42 Button fault
- Check that buttons are
working
AL 43
Open Therm
communication fault
- Check the OT electric
connection
AL 44
No flame valve opening
time sum anomaly
- Check for the presence
of water hammer on the
hot water system and, if
present, mount a water
hammer arrestor
- Check for any abnormal
requests on the room
thermostat
- Contact the Technical
Assistance Centre
AL 56
Lock for ∆T delivery/
return over max limit
(open vent)
- Contact the Technical
Assistance Centre
AL 57
Lock for flow
temperature (FT)
check (open vent)
- Contact the Technical
Assistance Centre
AL 72
Incorrect positioning of
the delivery sensor
- Check delivery sensor
operation and position
AL 80
Fault on the valve
control logic line/valve
cable damaged
- Check gas valve and board
AL 95
Flame signal micro
interruptions error
- Check electrode
- Check board
- Check electric power
supply
- Check gas calibration
AL 98
SW error, board start-
up
- Contact the Technical
Assistance Centre
AL 99 General board error
- Contact the Technical
Assistance Centre
- -
Frequent relief valve
intervention
- Check circuit pressure
- Check expansion vessel

Sime GIULIA SYSTEM 25 Specifications

General

Brand	Sime
Model	GIULIA SYSTEM 25
Category	Boiler
Language	English