Toshiba HWS-P804XWHM3-E1(TR) Service Manual page 97

[F08] Error TO sensor failure
TO sensor
connector (CN602) is
connected
TO sensor
resistance characteristic
is normal
Replace water heat exchange control board
[F10] Error TWI sensor failure
TWI sensor
connector (CN205) is
connected
TWI sensor
characteristic is normal
Replace water heat exchange control board
[F11] Error TWO sensor failure
TWO sensor
connector (CN205) is
connected
TWO sensor
characteristic is normal
Replace water heat exchange control board
AMP Air Conditioning
Start
No
Yes
No
(Refer to Characteristic table on page 113)
Yes
Start
No
Yes
No
(Refer to Characteristic table on page 113)
Yes
Start
No
Yes
No
(Refer to Characteristic table on page 113)
Yes
96
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Correct TO sensor
connection
Replace TO sensor
Correct TWI sensor
connection
Replace TWI sensor
Correct TWO sensor
connection
Replace TWO sensor