Toshiba HWS-P1105HR-E, Service Manual

Page: 99 / 184

98
[F20] Error TFI detach failure
Attach TFI sensor
to pipe
Replace TFI sensor
No
No
TFI sensor
is attached to pipe
Yes
TFI sensor
characteristic is normal
Yes
Replace TWI sensor
No
TWI sensor
characteristic is normal
Yes
Attach a mixing valve.
Make the mixing valve
connection correct.
Make the mixing valve
setting correct.
No
No
Mixing valve is attached.
Yes
Mixing valve connection
is correct.
Yes
No
FC_0C: Mixing valve running time
(30sec to 120sec)
Mixing valve setting
is correct.
Yes
Replace TWO sensor
No
TWO sensor
characteristic is normal
Yes
Start
Replace water heat exchange control board
(Refer to Characteristic table on page 113)
(Refer to Characteristic table on page 113)
(Refer to Characteristic table on page 113)
(Refer to wiring diagram of hydro unit on
page 20)