Troubleshooting
MAINTENANCE
77
u “Humidifying heater abnormal (E8)”
NO
YES
NO
YES
NO
YES
NO
YES
The alarm message is still
displayed even after the humidity
chamber is replaced with a
functional one.
The cable of the humidity chamber
connector is connected properly.
Failure of the humidity chamber
Connect the cable of the humidity
chamber connector securely.
The fuse of the heater control board
has blown. (F2)
Replace the fuse.
The cable is connected properly
both to the heater control board and
the control board.
Connect the connectors securely.
Failure of the heater control board
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