BCD-430WP Service Manual
16
compressor can start normally or not.
d.
If it still cannot start, it is judged as the compressor fault, then replace the
compressor.
(3)
LED lamp does not light up when the door is opened.
a.
If the door opener alarm occurs, check whether the door is closed and the
door lamp switch gets broken. (The LED lamp goes off when the door is open
for 10 minutes.)
b.
In the case of no door open alarm, cut off power supply, remove the electrical
box cover, check whether the terminals are properly connected, insert them
again, and then power on the system to observe whether the LED lamp lights
up.
c.
If the LED lamp is still off when the door is opened, cut off power supply,
change the LED lamp, and then power on the system, observing whether the
LED lamp goes on.
(4)
LECO does not light up when the door is opened.
a.
If the door open alarm occurs, cut off power supply, remove the electrical box
cover, check whether the terminals are properly connected, insert them again,
and then power on the system, observing whether the LECO lamp is lit up
when the door is opened.
b.
Open the door and hold the door lamp switch by hand to check if the LED
lampturns on and off as the door lamp switch is connected and disconnected.
If not, refer to the Door Open Alarm section to repair the door lamp switch; If
yes, go on with the following operations.
c.
Cut off power supply, replace the LECO lamp, power on the system when the
door is opened, observing whether the LECO lamp is lit up.
d.
Cut off power supply, remove the electrical box cover, replace the main board,
power on the system when the door is opened, observing whether the LECO
lamp is lit up.
e.
Cut off power supply, replace the display panel, and power on the system
when the door is opened, observing whether the LECO lamp lights up.
(5)
The freezer is cooling while the fridge is not cooling.
a.
Hold down the combination keys of ‘Function’ and‘OK’ for 5 seconds to enter
the maintenance program, turn on the compressor, fan and air damper by
force, turn off the defrosting heater, and then open the door, put your hand
at the air duct outlet, checking whether there is cooling air blown out from it.
b.
If there is no obvious cooling air blown outfrom it, cut off power supply,
dismantle the fridge air duct assembly and the freezer air duct assembly, with
the terminals not removed, and then check
