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Toshiba
[F18] Error THO sensor failure
[F19] Error THO sensor detach failure
Correct THO sensor
connection
Replace THO sensor
No
No
(See characteristic table on page 101)
THO sensor
connector (CN206) is
connected
Yes
THO sensor
characteristic is normal
Yes
Start
Replace water heat exchange control board
Attach THO sensor
to pipe
Replace THO sensor
No
No
THO sensor
is attached to pipe
Yes
THO sensor
characteristic is normal
Yes
Replace TWO sensor
No
(See characteristic table on page 101)
(See characteristic table on page 101)
TWO sensor
characteristic is normal
Yes
Start
Replace water heat exchange control board
+00A09-002_01EN_SVM_ALL_Air_to_Water.book Page 88 Monday, October 5, 2009 2:09 PM