Troubleshooting Guide - Panasonic EH-NE84 Service Manual

3. TROUBLESHOOTING GUIDE

Refer to WIRING CONNECTION DIAGRAM.
< TROUBLE >
Main body is
not operated
For EH-NE82 and 84 only
Advance heat protection mode is not
operated or not operated follow spec
(Figure 2)
*Air keep switching between hot and cold
Environmental Interval time (sec)
temperature Hot air
3.0 ~ 8.0
23.9 C or less
º
2.0 ~ 6.0
24 ~ 29 C
º
2.0 ~ 4.5
29.1 C or more
º
*Check interval time after operate on this mode for 30 sec
Figure 2
Lead Wire (Orange)
<CHECK POWER CORD>
Check the conductivity of power cord
<CHECK MAIN SWITCH>
Check the conductivity between the terminal 1
and 4 by setting
the MAIN SWITCH to Position 1
Lead Wire (Gray)
Lead Wire (Orange)
Check the position of thermistor
Cold air
2.0 ~ 4.5
2.0 ~ 5.5
5.0 ~ 8.0
<CHECK TEMPERATURE SWITCH>
Check the conductivity between the terminal 1
and 4 by setting
the TEMPERATURE SWITCH to Position 1
Temperature switch
Replace PRINTED CIRCUIT ASSEMBLY
Replace MOTOR HEATER ASSEMBLY
< CHECK >
OK
(Figure 1)
Main Switch
<
CHECK THERMISTOR>
(Figure 3)
OK
Control point
Thermistor must
be placed at
the center of hole
(Figure 4)
OK
OK
< REMEDY >
NG
Replace the
MOTOR HEATER
ASSEMBLY
NG
Replace the
MAIN SWITCH
OK
Replace the
MOTOR HEATER
ASSEMBLY
Lead Wire (Yellow)
Figure 1
Lead Wire (Red)
NG
Adjust the position
of thermistor follow
control point
Figure 3
NG
Replace the
TEMPERATURE SWITCH
Lead Wire (Black)
Figure 4
Lead Wire (Brown)
Thermistor