FERtech 25 OV
30
Cod. 3540U431 - 11/2009 (Rev. 00)
Fault
Possible cause
Cure
F13
Flue sensor fault
Sensor damaged or wiring shorted
Check the wiring or change the sensor
Sensor damaged or wiring broken
Check the wiring or change the
sensor
F14
Flow sensor fault
Sensor damaged or short circuited
Check the wiring or change the sensor
Sensor damaged or wiring broken
Check the wiring or change the sensor
F15
Fan problem
Tachometer signal interrupted, fan
connection
Check the wiring and fan
Fan damaged, debris in fan
Check the fan, clean debris
F34
Supply voltage under 180V.
Electric mains fault
Check the electrical system
F35
Irregular mains frequency
Electric mains fault
Check the electrical system
F42
Flow sensor fault
Sensor damaged
Change the sensor