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