Toshiba ESTIA R32 HWT-1101F21MT6W-E, Manual

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TOSHIBA I 41 TOSHIBA I 41
Fault symptoms
Symptom Possible cause Measures
Room is not heated or cooled,
water is not warm or cold enough
Incorrect settings on the remote control
Check the remote control and the temperature
setting
Incorrect function code setting
Check the function code setting according to
the function code table
Backup heater not connected
Check the backup heater and the
bimetal thermostat
Insufficient power Check the selection of components
Sensor defective
Check whether the temperature sensor has
been installed in the correct location
Nothing is displayed on the remote control
No power Check the power cables
Incorrect setting
Check the DIP switch setting on the PCB of the
hydro unit. Check the setting according to the
function code table
Flow switch is activated
Error code [A01]
Air in the pump
Ventilate the system according to the instruc-
tions
Low hydraulic pressure
Adjust the hydraulic pressure according to the
piping height and add
water until the required hydraulic pressure as
a minimum is displayed on the manometer
Sieve is blocked Clean the sieve
High resistance on the hydro side
Increase the water supply to the hydro
unit or install a bypass valve
Malfunction of the 3-way diverter valve for hot
water supply
Check the wiring and the components
Hot water is escaping from the pressure-re-
ducing valve
Excessive hydraulic pressure
Adjust the hydraulic pressure according to the
piping height and add
water until the required hydraulic pressure as
a minimum is displayed on the manometer
Insufficient capacity of the expansion tank
Check the capacity of the expansion tank
compared to the total water volume. If this is
not sufficient, install a further expansion tank
Malfunction of the expansion tank Check the air pressure
FAUL
T SYMPTOMS