Toshiba ESTIA R32 HWT-401HW-E Manual page 84

Error
Code
Technical cause
Regular communication error
between Hydrobox and 0-10 V-IF
E14 If no regular communication takes place from
the 0-10 V interface for 3 min. or if no 0-10 V
interface is connected.
Regular communication error between
E18 master and slave Hydrobox during group
control
TC sensor fault
F03 Interruption or short circuit in the coil
temperature sensor
TD sensor fault
F04 Interruption or short circuit in the hot gas
temperature sensor
TE sensor fault
F06 Interruption or short circuit in the coil
temperature sensor
TL sensor fault
F07 Interruption or short circuit in the coil
temperature sensor
TO sensor fault
F08 Interruption or short circuit in the outdoor
temperature sensor
TWI sensor fault
F10 Interruption or short circuit in the water
inlet temperature sensor
TWO sensor fault
F11 Interruption or short circuit in the water outlet
temperature sensor
TS sensor fault
F12 Interruption or short circuit in the intake
temperature sensor
TH sensor fault
F13 Interruption or short circuit in the heat
sink temperature sensor
TTW sensor fault
F14 Interruption or short circuit in the hot
water temperature sensor
TE/TS sensor fault
F15 TE, TS sensor connections have been mixed
up
TFI sensor fault
F17 Interruption or short circuit in the floor
temperature sensor
THO sensor fault
F18 Interruption or short circuit in the
heating outlet temperature sensor
Detection of a THO disconnection
fault
F19
If TWO-THO>15K has been detected and
30 seconds elapse
44 I TOSHIBA 44 I
TOSHIBA
Diagnostics of functional operation
Backup
present
Heating
Hot water
Heating
Hot water
Heating
Hot water
Heating
Hot water
Heating
Hot water
Automatic
reset
1. Check the 0-10 V-IF connection.
X X
2. Fault in 0-10 V-IF.
Check the Hydrobox connection.
X O
- Miswiring of the master and slave Hydrobox
Check the resistance and connection of the
O O
temperature sensor of the heat exchanger (TC)
Check the resistance and connection of the hot gas
O X
temperature sensor (TD)
Check the resistance and connection of the
O X
temperature sensor of the heat exchanger (TE)
Check the resistance and connection of the
O X
temperature sensor of the heat exchanger (TL)
Check the resistance value and connection of the
O X
outdoor temperature sensor (TO)
Check the resistance and connection of the
O O
temperature sensor of the water inlet (TWI)
X Check the resistance and connection of the
O
temperature sensor of the water outlet (TWO)
O
Check the resistance value and connection of the
O X
intake temperature sensor (TS)
Check the resistance and connection of the
O X
temperature sensor of the heat sink (TH)
O Check the temperature sensor of the hot water
O
cylinder (TTW)
X
Check for incorrect installation of the temperature
O X sensor of the heat exchanger (TE) and the intake
temperature sensor (TS)
X Check the resistance and connection of the
O
temperature sensor of the floor inlet (TFI)
O
X Check the resistance and connection of the
O
temperature sensor of the heating outlet (THO)
O
1. Check for interruptions in the connection of the
X
X temperature sensor of the heating outlet (THO)
2. Flow switch defect
O
Determination and measures