-2-
Problem
Cause
Check
Corrective action
No LED of the
display lamp is ON.
• Improperly
connected
connector cable of
the Panel [112]
PCB
• Check the plug-in state of the
connector cable.
(See “Reassembly of the
power supply unit” on page
12.)
• Firmly plug the
connector cable.
• Internal wires
loosely plugged
into the Controller
Set [49] and Filter
PCB Set [58]
• Check the plug-in state of the
internal wires.
(See “Reassembly of the
power supply unit” on page
12.)
• Firmly plug the internal
wires into the Controller
Set [49] and Filter PCB
Set [58].
• Broken Controller
Set [49]
• When the Controller Set [49]
connector is not defective
• When the internal wire is not
defective
• Replace the Controller
Set [49] with a new
one.
• Broken LED
• When the connector cable is
not defective
• Replace the Panel [112]
with a new one.
• Broken Filter PCB
Set [58]
• When the internal wire is not
defective
• Replace the Filter PCB
Set [58] with a new
one.
The LEDs of the
display lamp light,
but the motor does
not run.
• Internal wires
loosely connected
to the Switch [63]
• Check the plug-in state of
internal wires to the Switch
[63]. (See “Reassembly of
the power supply unit” on
page 12.)
• Firmly connect all
internal wires to the
Switch [63].
• Broken Controller
Set [49]
• When internal wires of the
Controller Set [49] are not
defective
• Replace the Controller
Set [49] with a new
one.
• Broken Switch
[63]
• When internal wires of the
Controller Set [49] are not
defective
• Replace the Switch [63]
with a new one.
