Saunier Duval Themaclassic F30E Instructions For Use Installation And Servicing page 37

Does the warning light flash 45 seconds
after the start of the demand?
YES
Check the fan (loose terminal
connector, windings burnt out).
Interface board or control board (PCB).
FAULT: THE FAN RUNS BUT THERE ARE NO SPARKS.
Does the warning light flash 45 seconds
after the start of the demand?
YES
The air flow switch is not operating or
is unplugged.
CONNECTIONS TO THE AIR PRESSURE SWITCH
Air flow switch take-off.
18 Fault Finding
FAULT: THE FAN DOES NOT START.
NO
NO
NO
Pr
P2
P1
H L
Electrical contacts.
37
Check the power from the room thermostat.
Replace the interface board or
control board (PCB).
Thermistor.
Control board (PCB).
Check the pressure drop on the
flue pipe.
Is the plastic tube on the correct pressure
connection of the air pressure switch?
Are the electrical connections in place.
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