Troubleshooting
MAINTENANCE
89
(2) When no message is displayed on the screen:
q The power failure alarm indicator is flashing red.
YES
NO
YES
NO
NO
YES
NO
NO
NO
YES
YES
An audible alarm (pip pip pip…pip
pip) is given from the buzzer of the
main body.
The power supply to the installation
site (room) is interrupted.
Restore the power supply to the
installation site (room).
The power cord is connected
properly.
Connect the power cord securely.
Replace the power cord.
Remove the power cord and then
connect it again in ten seconds or so.
The audible alarm stops when the
power switch is turned off.
Failure of the transformer or
meltdown of the fuse (F4) on the
heater control board
The voltage is output from the
secondary side of the control power
transformer.
Failure of the control board
The power cord has a broken wire.
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