Mitsubishi Electric Q02CPU-A - Troubleshooting Guides and Error Resolution

11 - 3
11. TROUBLESHOOTING
11.2.2 Flow for actions when the POWER LED is turned off
The corrective action when the POWER LED turns off when the power supply is turned on
or during operation is described.
NO
YES
YES
NO
YES
NO YES
NO
YES
NO
NO YES
NO
YES
NO YES
The POWER LED
turned off.
Is the power
being supplied?
Is the
power supply
voltage within 85 to
264VAC?
Is the
power supply
module securely fixed
to the base
unit?
Are the
overvoltage
protection and
overcurrent protection
operating?
Describe the problem to
the nearest service center,
retail store, or corporate.
Supply the power.
Does the
POWER LED
turn on?
Does the
POWER LED
turn on?
Set the supplied voltage
within the regulated range.
Fix the power supply
module securely.
(1) Check the current
capacity, and reduce the
amount of overcurrent.
(2) Turn off the input
power supply, then on.
Complete
Does the
POWER LED
turn on?
Does the
POWER LED
turn on?