132
Checks to perform:
E71
E71: NTC Open Circuit
E71
NTC open circuit, wiring and main board defective.
WARNING
Check that all the connectors are correctly inserted
Y
E
S
NO
Check if wiring between the Electronic
Control Board and the Outlet Control
Thermistor is properly connected?
Y
E
S
Replace the Electronic Control Board and
repeat the Diagnostic Cycle to check for any
further alarms.
Measure the value of the Exhaust Thermistor
between terminals of J4 wiring connector.
Is the value correct? (Between 47 KΩ –66
KΩ at 20° to 25°C) (See Fig.1)
NO
Detach the connector
and measure directly on
the Exhaust Thermistor.
Is the value correct?
(Between 47 KΩ – 66
KΩ at 20° to 25°C) (See
Fig.2)
Y
E
S
NO
Replace the Thermistor and repeat
the Diagnostic Cycle to check for
any further alarms.
Check/Replace the wiring and repeat the Diagnostic Cycle
to check for any further alarms.
Check/Replace the wiring and repeat the Diagnostic Cycle
to check for any further alarms.