1.6 Faults
In the unlikely event of an operating problem, or component failure, the display flashes and a fault
identification code appears.
8
OPTIMAX HE PLUS 25 S
Cod. 3540R540 - 02/2009 (Rev. 00)
1.5 Maintenance
It is strongly recommended to carry out annual maintenance of the boiler and heating system. Please
refer to the “maintenance” section in this manual.
The casing, the control panel and the aesthetic parts of the boiler can be cleaned using a soft and damp
cloth,
do not use abrasives or solvents.
The boiler is equipped with an advanced self-diagnosis system that signals any faults on the display.
Some faults (“A“ indication) cause a boiler shutdown. In this case, operation must be reset manually by
pressing the
reset
(Part. 6 – fig. 1) for 1 second.
Other faults (“F“ indication) cause temporary shutdowns that are automatically reset as soon as the
value causing the fault comes back within the boiler’s normal working range.
Listed below are some anomalies that can be caused by simple, user-solvable problems.
If the problem remains after two attempts at resetting, contact the Ferroli Service Centre.
For other faults, refer to section 3.4 “Troubleshooting”.
Fault
Cure
No burner ignition
Make sure that the gas cocks ahead of the boiler
and on the meter are open.
Press the RESET button (for 1 second).
In case of repeated shutdowns, contact the Ferroli
Service Department.
Low system pressure
Fill the ‘system to 1-1.5 bar.
Before calling a Ferroli service engineer, check that the problem is not due to there being no
gas or electricity, or low system pressure.
