DELUXE
Inverter
Service
M
anual
（
14
）
F6- external temperature sensor error
Explanation of
error
Cause:
The detection of short circuit or open circuit of external termperature
sensor during the inspection of main external control panel, indicated by
"external termperature sensor error".
Inspection path:
Sensor→Sensor wire→Connectors→Main external control
panel
Tools required
for inspection
Multimeter, 15KΩ standard sensor
（
25
℃
）
Frequent
problematic part
External temperature sensor, main external control panel.
Inspection
procedure and
key points
1. Check whether there’s
a
resistance problem, short circuit or open circuit in
the
sensor; the resistance value shall be within a reasonable range (15KΩ under
the
temperature of 25
℃
).
2. Check whether the sensor wire is broken.
3. Check whether the terminal connectors are well fixed; check whether the weld
between the terminal and the main control panel is loose, and pull the terminal
slightly for inspection if necessary.
4. Check whether the sensor is affected with damp.
5. In case no standard sensor is available at present, replace the external
temperature sensor with
an
other sensor and then check whether the
error still
exists; if the error disappears, replace the sensor; if the error still exists,
it's
possible that the main control panel is fault
y
, change the main external
control
panel.
Special attention
Most of the standard resistance values of the external temperature sensors are
15KΩ (hen temeperature is at 25
℃
)
and the higher the temeprautre is, the
lower the resistance value is, and the lower the temperature is, the higher the
resistance value is. Do not use improper sensor during repair and maintenance
or it may le
a
d
to a
wrong temperature sensing of the machine.
37
