Hitachi H 45MEY Service Manual page 3

Problem
• Improperly
connected
connector cable of
the Panel [98]{95}
PCB
• Internal wires
loosely plugged
into the Controller
[53]{50} and Filter
No LED of the
PCB Set [62]{59}
display lamp is
• Broken Controller
ON.
[53]{50}
• Broken LED
• Broken Filter PCB
Set [62]{59}
• Internal wires
loosely connected
to the Switch
[69]{66}
The LEDs of the
display lamp light,
• Broken Controller
but the motor
[53]{50}
does not run.
• Broken Switch
[69]{66}
Cause
• Check the plug-in state of the
connector cable.
(See "Reassembly of the
power supply unit" on page
11.)
• Check the plug-in state of the
internal wires.
(See "Reassembly of the
power supply unit" on page
11.)
• When the Controller [53]{50}
connector is not defective
• When the internal wire is not
defective
• When the connector cable is
not defective
• When the internal wire is not
defective
• Check the plug-in state of
internal wires to the Switch
[69]{66}. (See "Reassembly
of the power supply unit" on
page 11.)
• When internal wires of the
Controller [53]{50} are not
defective
• When internal wires of the
Controller [53]{50} are not
defective
-2-
Check
• Firmly plug in the
connector cable.
• Firmly plug the internal
wires into the Controller
[53]{50} and Filter PCB
Set [62]{59}.
• Replace the Controller
[53]{50} with a new one.
• Replace the Panel
[98]{95} with a new one.
• Replace the Filter PCB
Set [62]{59} with a new
one.
• Firmly connect all internal
wires to the Switch
[69]{66}.
• Replace the Controller
[53]{50} with a new one.
• Replace the Switch
[69]{66} with a new one.
Corrective action