Error Tho Sensor Failure; Error Tho Sensor Detach Failure - Toshiba HWS-802XWHM3-E Service Manual

[F18] Error THO sensor failure
Start
THO sensor
connector (CN206) is
connected
THO sensor
characteristic is normal
Replace water heat exchange control board
[F19] Error THO sensor detach failure
Start
THO sensor
is attached to pipe
THO sensor
characteristic is normal
TWO sensor
characteristic is normal
Replace water heat exchange control board
No
Yes
No
(See characteristic table on page 101)
Yes
No
Yes
No
(See characteristic table on page 101)
Yes
No
(See characteristic table on page 101)
Yes
88
Correct THO sensor
connection
Replace THO sensor
Attach THO sensor
to pipe
Replace THO sensor
Replace TWO sensor