Ferroli OPTIMAX HE PLUS S, Instructions For Use, Installation And Maintenance

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OPTIMAX HE PLUS S
Cod. 3540R543 - 08/2012 (Rev. 00)
Table 6 - List of faults
Fault
code
Fault Possible cause Cure
A01 No burner ignition
No gas
Check the regular gas fl ow to the boiler and that the air has been purged
from the pipes
Detection or Ignition electrode fault Check that the electrodes are correctly positioned and free of any deposits
Defective gas valve Check and change the gas valve
Incorrect inlet gas pressure Check inlet gas pressure
Siphon obstructed Check and if necessary change the siphon
A02
Flame detected with
the burner off
Ionisation electrode defective Check the ionising electrode wiring
Main board defective Check the PCB
A03 High limit protection
Flow temperature sensor not active or correctly located Check the correct positioning and operation of the fl ow sensor
No system circulation
Check pump and radiator valves present in the system
Check operation of the internal by-pass
A04 Flue gas fault Fault F07 happened 3 times in the last 24 hours Check the fl ue
A05 Fan problem Tachometer signal interrupted for 1 hour or longer Check the wiring and the fan
A06
No flame after the
ignition phase (6 times
in 4 minutes)
Detection electrode fault Check that the electrodes are correctly positioned and if necessary change it
Flame unstable Check the burner
Incorrect valve gas Offset Check the Offset at the minimum power
Flue gas circuit obstructed Check if fl ue gas circuit is free
Siphon obstructed Check and if necessary change the siphon
A41
Flow sensor discon-
nected
Sensor disconnected Check the correct positioning and operation of the fl ow sensor
F07
High fume tempera-
ture The exchanger probe detects and excessive temperature
for over 2 minutes
Check the exchanger
F10 Flow sensor fault
Sensor damaged or short circuited
Check the wiring or change the sensor
Sensor damaged or wiring broken
F11 Return sensor fault
Sensor damaged or wiring shorted
Check the wiring or change the sensor
Sensor damaged or wiring broken
F13
Exchanger probe
fault
Exchanger Probe damaged or wiring shorted
Check the wiring or replace the Exchanger probe
Exchanger Probe damaged or wiring broken
F14 Flow sensor fault
Sensor damaged or short circuited
Check the wiring or change the sensor
Sensor damaged or wiring broken
F15 Fan problem
Tachometer signal interrupted, fan connection Check the wiring and the fan
Fan damaged, debris in fan Check the fan, clean debris
F34
Supply voltage under
170V
Electric supply problem Check the electrical system
F35
Irregular mains fre-
quency
Electric supply problem Check the electrical system
F37
Incorrect system water
pressure
Pressure too low Fill the system
Sensor damaged Check the sensor
F42 Flow sensor fault Sensor damaged Change the sensor