Toshiba HWS-P805XWHM3-E - Page 77

76
E04
Regular communication error
between hydro unit and outdoor unit
The serial signal cannot be received
from outdoor.
OO
1. Check the serial circuit.
• Miswiring of the crossover between
the water heat exchanger and the
outdoor unit
192
E08
Duplicate address of Hydro unit, or
Duplicate master Hydro unit during
Group control
× O
1. Set the address No. of the Rotary
switch "SW01" correctly for each
Hydro unit.
1—
E18
Regular communication error
between master Hydro unit and slave
Hydro unit during Group control
× O
1. Check the Hydro unit connection.
• Miswiring of the master and slave
Hydro unit.
1—
F03
TC sensor error
Open or short circuit in the heat
exchange temperature sensor.
OO
1. Check the resistance value and
connection of the heat exchange
temperature sensor (TC).
193
F10
TWI sensor error
Open or short circuit in the water inlet
temperature sensor.
OO
1. Check the resistance value and
connection of the water inlet
temperature sensor (TWI).
195
F11
TWO sensor error
Open or short circuit in the water outlet
temperature sensor.
Heating
×
Hot water
O
O
1. Check the resistance value and
connection of the water outlet
temperature sensor (TWO).
195
Check
code
Diagnostic functional operation
Determination and action
Number of
abnormalities
for
confirmation
Detailed
item
Operational cause
Backup
operation
Automatic
reset