Toshiba HWS-P1105HR-E, Service Manual

Page: 78 / 184

77
F14
TTW sensor error
Open or short circuit in the hot water
cylinder sensor.
Heating
×
Hot water
O
O
1. Check the resistance value and
connection of the hot water cylinder
sensor (TTW). 1 96
F17
TFI sensor error
Open or short circuit in the floor
temperature sensor.
(Only when zone 2 is used)
Heating
×
Hot water
O
O
1. Check the resistance value and
connection of the floor-inlet
temperature sensor (TFI). 1 96
F18
THO sensor error
Open or short circuit in the heater outlet
temperature sensor.
Heating
×
Hot water
O
O
1. Check the resistance value and
connection of the heater outlet
temperature sensor (THO). 1 96
F19
Detection of THO disconnection error
When TWO–THO>15K is detected and
30 sec elapsed.
Heating
×
Hot water
O
×
1. Check for any disconnection of the
heater outlet temperature sensor
(THO).
2. Defect of the flow switch.
1 97
F20
TFI sensor error
When TWO–TFI>40K is detected and
TFI<TWI–5K is detected 60 sec.
Heating
×
Hot water
O
×
1. Check the connection of the floor-
inlet temperature sensor (TFI).
1 98
F23
Low pressure sensor error
When PS<0.07 MPa is detected for 90
sec or more. (cooling, defrosting)
When PS<0.07 MPa is detected for 10
min or more. (hot water supply, heating)
O O
1. Check the connection (body or
connection wiring) of the low
pressure sensor.
2. Check the resistance value of the
low pressure sensor.
3. Check the refrigeration cycle (gas
leak)
1 99
F29
EEROM error
Inconsistency is detected once without
verify ACK after writing to EEPROM.
× ×
1. Replace the water heat exchange
control board.
1 99
F30
Extended IC error
When the extended IC is abnormal.
× ×
1. Replace the water heat exchange
control board.
1 99
L02
Combination error
Model name of the outdoor unit is
different.
× ×
1. Check the model name of the
outdoor unit.
1 99
L07
Communication error
Individual hydro units have a group line.
× ×
1. Replace the water heat exchange
control board.
1 99
L09
Communication error
The capability code for the hydro unit
has not been set.
× ×
1. Check the setting of the FC01
capability specifications.
HWS-P805xx-E = 0012
HWS-P1105xx-E = 0015
1 100
L16
Setting error
When ZONE1 has not been set, while
ZONE2 has been set.
× ×
1. Check the body DP-SW12_2,3. 1 100
P31
Slave Hydro unit error which occurs
when error occurs in master Hydro
unit
×
O
1. Check the remote controller
connection.
2. Defect in the remote controller.
3. Set the address No. of the Rotary
switch "SW01" correctly for each
Hydro unit.
1 —
Check
code
Diagnostic functional operation
Determination and action
Number of
abnormalities
for
confirmation
Detailed
item
Operational cause
Backup
operation
Automatic
reset