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4-2-3 E-21
Connect the sensor.
NO
After Power -> On, does
the symptom continue?
BF641FST_XFA_05291A.indb 21
Sensor Open Error (E-21)
YES
Is the sensor disconnected?
NO
Connect the
wire properly.
Does the voltage change
S/W Error
as the humidity, temperature
The sensor is out of order.
YES
Replace the PCB.
Perform the operation again and check if it
NO
Is the sensor wire
connected properly?
YES
: Check if the voltage of the GND and sensor
and weight change?
NO
Replace the sensor.
is working properly.
- 21 -
: Check if the sensor housing
is inserted into the connector
of the main PCB.
connector
: Check if the sensor wire is damaged, if the
housing is loose and if the sensor and the
wire are properly connected.
changes using a digital multi-meter
by forcefully changing the humidity, temperature
and weight.
connector
2011-10-31
1:33:35
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