79
EN
Cod. 3541T090 - Rev. 00 - 06/2019
ALARMS
Fault code
Fault
Possible cause
Cure
F09
A09
Overtemperature pro-
tection intervention
Return sensor damaged
Check the correct positioning and operation of the return sensor
and replace it if necessary
No water circulation in the system
Check the circulating pump
Air in the system
Vent the system
F10
A10
Delivery sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
F11
A11
Return sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
F12
DHW sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
F13
A13
Fume probe fault
Probe damaged
Check the wiring or replace the fume probe
Wiring shorted
Wiring disconnected
A14
Fume extraction duct
safety device inter-
vention
Fault F07 generated 3 times in the last 24 hours See fault F07
F34
Supply voltage under
170V
Electric mains trouble
Check the electrical system
F37
Incorrect system wa-
ter pressure
Pressure too low
Fill the system
Water pressure switch damaged or discon-
nected
Check the water pressure switch
F39
External probe fault
Probe damaged or wiring shorted
Check the wiring or replace the sensor
Probe disconnected after activating the sliding
temperature
Reconnect the external probe or disable the sliding temperature
F41
Activation of maxi-
mum DELTA T pro-
tection
Heating sensor damaged
Check the correct positioning and operation of the heating sen-
sor
Return sensor damaged
Check the correct positioning and operation of the return sensor
No water circulation in the system
Check the circulating pump
Air in the system
Vent the system
F42
A42
Sensor control pro-
tection activation
Return and/or delivery sensor damaged or di-
sconnected
Check the correct positioning and operation of the return and/or
delivery sensor and/or replace it
Return sensor damaged or disconnected
Check the correct positioning and operation of the return sensor
F43
Exchanger protection
intervention.
No system H2O circulation
Check the circulating pump
Air in the system
Vent the system
A23 - A24 - A26
F20 - F21 - F40
F47 - F51
Card parameter fault Wrong card parameter setting
Check the card parameters and modify if necessary
F50 - F53
Limit thermostat fault
with parameter b06 =
1 o 4
No/poor water circulation in the system
Check the circulating pump
Air in the system
Vent the system
Incorrect parameter
Check the correct parameter setting
Summary of Contents for OMNIA HYBRID C
Page 34: ...34 EN Cod 3541T090 Rev 00 06 2019 REMOTE CONTROLLER USER MENU 7 2 Menu structure ...
Page 35: ...35 EN Cod 3541T090 Rev 00 06 2019 REMOTE CONTROLLER USER MENU DHW mode is setting OFF ...
Page 36: ...36 EN Cod 3541T090 Rev 00 06 2019 REMOTE CONTROLLER USER MENU ...
Page 51: ...51 EN Cod 3541T090 Rev 00 06 2019 REMOTE CONTROLLER SERVICE MENU ...
Page 53: ...53 EN Cod 3541T090 Rev 00 06 2019 REMOTE CONTROLLER SERVICE MENU U ...
Page 100: ...100 EN Cod 3541T090 Rev 00 06 2019 ELECTRICAL DIAGRAM INDOOR UNIT Principle scheme ...
Page 101: ...101 EN Cod 3541T090 Rev 00 06 2019 ELECTRICAL DIAGRAM INDOOR UNIT Electronic heat pump board ...
Page 102: ...102 EN Cod 3541T090 Rev 00 06 2019 ELECTRICAL DIAGRAM INDOOR UNIT Wiring board ...
Page 113: ...113 EN Cod 3541T090 Rev 00 06 2019 ...
Page 114: ...114 EN Cod 3541T090 Rev 00 06 2019 ...