Ferroli Optimax HE PLUS C, Instructions For Installation, Use And Maintenance Manual

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OPTIMAX HE PLUS C
26 EN
cod. 3540I885 - 08/2012 (Rev. 00)
Certain faults cause permanent boiler shutdowns (marked with the letter “ A ”): to restore operation, press the RESET
button (detail 6 - fig. 1) for 1 second or RESET on the optional remote timer control if installed; if the boiler fails to start,
it is necessary to firstly eliminate the fault.
other faults (indicated with the letter “
F ”) cause temporary shutdowns that are automatically reset as soon as the value
returns within the boiler's normal working range.
Table. 6 - List of faults
Fault
code
Fault Possible cause Cure
A01 No burner ignition
No gas
Check the regular gas flow 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 protec-
tion
Flow temperature sensor not active or cor-
rectly located
Check the correct positioning and operation of the flow 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 flue
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 min-
utes)
Detection electrode fault Check that the electrodes are correctly positioned and if neces-
sary change it
Flame unstable Check the burner
Incorrect valve gas Offset Check the Offset at the minimum power
Flue gas circuit obstructed Check if flue gas circuit is free
Siphon obstructed Check and if necessary change the siphon
A41
Flow sensor dis-
connected
Sensor disconnected Check the correct positioning and operation of the flow sensor
F07
High fume tem-
perature The exchanger probe detects and exces-
sive 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
F12 DHW sensor fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F13
Exchanger probe
fault
Sensor damaged or wiring shorted
Check the wiring or replace the probe
Sensor 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 connec-
tion
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
frequency
Electric supply problem Check the electrical system
F37
Incorrect system
water pressure
Pressure too low Fill the system
Sensor damaged Check the sensor
F39
External probe
fault
Sensor damaged or short-circuited Check the wiring or change the sensor
F42 Flow sensor fault Sensor damaged Change the sensor