Toshiba HWT-601XWHT6W-E - Page 123

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[F20] TFI detach error
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
DN_0C: Mixing valve running time
(30 sec to 240 sec)
Mixing valve setting
is correct
Yes
Replace TWO sensor
No
TWO sensor
characteristic is normal
Yes
Start
Check water
heat exchange
control board
If defective, replace it
PC board
MCC-1753
(Refer to Characteristic table on page 137)
(Refer to Characteristic table on page 137)
(Refer to Characteristic table on page 137)
(Refer to wiring diagram of hydro unit on
page 27)