Toshiba HWT-1101XWHM3W-E, Installation Manual

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Hydro Unit Installation Manual
F18
THO sensor error Heating
×
Hot water
O
O
1. Check the resistance value and connection of the
heater outlet temperature sensor (THO).
F19
Detection of THO disconnection
error Heating
×
Hot water
O
×
1. Check for any disconnection of the heater outlet
temperature sensor (THO).
F20
TFI sensor error Heating
×
Hot water
O
×
1. Check the connection of the floor-inlet temperature
sensor (TFI).
F23
Low pressure sensor error
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.
F29
EEROM error
× ×
1. Replace the P.C. board. (Hydro Unit)
F30
Extended IC error
× ×
1. Replace the P.C. board. (Hydro Unit)
F32
Flow sensor error Heating
×
Hot water
O
O
1. Check the connection of flow sensor.
2. Check the water flow from the external pump.
3. Check the flow rate detected by flow sensor and
actual flow.
F33
Flowing quantity error
1)Detected by TC sensor
TC
≥
68 °C is detected in the heating or
hot water supply heat pump
operation(except for defrosting).
Heating
×
Hot water
O
×
No or little water flow
Defect of the flow sensor
2)Detected by flowing quantity
When the stopped built-in circulation
pump starts its opertion, the flow
sensor status is detecting "water flow".
Defect of the flow sensor
L02
Combination error
Model name of the Outdoor Unit is
different.
× ×
1. Check the model name of the Outdoor Unit.
L03
Duplicate main Hydro unit during
Group control
There are more than one header
units in group.
×
×
1. Check Hydro Unit addresses. (DN 14)
2. Check for any change made to remote control
connection (group/individual) since Hydro address
setting.
L07
Group line in individual Hydro Unit
There is at least one standalone Hydro
Unit to which group control cable is
connected.
× ×
1. Check Hydro Unit addresses. (DN 14)
L08
Hydro Unit group / Address unset
Address setting has not been
performed for indoor units.
× ×
1.Check Hydro Unit addresses.
Note: This code is displayed when power is turned on
for the first time after installation.
L09
Hydro Unit capacity unset
× ×
1. Set Hydro Unit capacity. (DN 11)
L16
Setting error
When ZONE1 has not been set, while
ZONE2 has been set.
× ×
1. Check the DN 6B9, 6BA.
O ....Possible
×
.....Not possible
Check
code
Diagnostic functional operation
Determination and action
Operational cause
Backup
operation
Automatic
reset
Defect mode detected by the Outdoor Unit
L22
0-10V Setting error
DN680 settings in group control are
not the same for all units.
× ×
1. Check the 0-10V setteing for all units. (DN680)
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. Check Hydro Unit addresses.
Check
code
Diagnostic functional operation
Determination and action
Operational cause
Backup
operation
Automatic
reset
F04
TD sensor error
O
×
1. Check the resistance value and connection of the
discharge sensor (TD).
F06
TE sensor error
O
×
1. Check the resistance value and connection of the
heat exchange temperature sensor (TE).
F07
TL sensor error
O
×
1. Check the resistance value and connection of the
heat exchange temperature sensor (TL).
F08
TO sensor error
O
×
1. Check the resistance value and connection of the
outdoor temperature sensor (TO).
F12
TS sensor error
O
×
1. Check the resistance value and connection of the
suction temperature sensor (TS).
F13
TH sensor error
O
×
1. Check the resistance value and connection of the
heat-sink temperature sensor (TH).
F15
TE, TS sensors error
O
×
1. Check for any wrong installation of the heat exchange
temperature sensor (TE) and the suction temperature
sensor (TS).
F24
PD sensor error
O
×
1. Check the value of PD sensor by the remote
controller and connection of the PD sensor.
F31
EEPROM error
O
×
1. Replace the outdoor control board.
H01
Compressor breakdown
O
×
1. Check the power supply voltage.
2. Over-loaded condition of the refrigeration cycle.
3. Check that the service valve is fully open.
H02
Compressor lock
O
×
1. Defect of compressor (lock)
– Replace the compressor.
2. Defect of compressor wiring (open phase).
H03
Defect in the current detection
circuit
O
×
1. Replace the outdoor inverter control board.
H04
Operation of case thermostat
O
×
1. Check the refrigeration cycle (gas leak).
2. Check the case thermostat and connector.
3. Check that the service valve is fully open.
4. Defect of the pulse motor valve.
5. Check for kinked piping.
L10
Unset service PC board jumper
Jumpers have not been cut.
O
×
1. Cut outdoor PC board jumper wire (for service).
L15
Combination error
Model name of the Hydro Unit is
different.
× ×
1. Check the model name of the Hydro Unit.
L29
The communication between the
outdoor PC board MUCs error
O
×
1. Replace the outdoor control board.
O ....Possible
×
.....Not possible
Check
code
Diagnostic functional operation
Determination and action
Operational cause
Backup
operation
Automatic
reset
67-EN 68-EN