Toshiba HWT-601XWHT6W-E - Page 103

102
Defect mode detected by the outdoor unit
O ... Possible
× .... Not possible
Check
code
Diagnostic functional operation
Determination and action
Number of
abnormalities
for
confirmation
Detailed
item
Operational cause
Backup
operation
Automatic
reset
F04
TD sensor error
Open or short circuit in the discharge
temperature sensor.
O
×
1. Check the resistance value and
connection of the discharge sensor
(TD).
4
118
135
F06
TE sensor error
Open or short circuit in the heat
exchange temperature sensor.
O
×
1. Check the resistance value and
connection of the heat exchange
temperature sensor (TE).
4
118
135
F07
TL sensor error
Open or short circuit in the heat
exchange temperature sensor.
O
×
1. Check the resistance value and
connection of the heat exchange
temperature sensor (TL).
4
118
135
F08
TO sensor error
Open or short circuit in the outdoor
temperature sensor.
O
×
1. Check the resistance value and
connection of the outdoor
temperature sensor (TO).
1
119
135
F12
TS sensor error
Open or short circuit in the suction
temperature sensor.
O
×
1. Check the resistance value and
connection of the suction
temperature sensor (TS).
4136
F13
TH sensor error
Open or short circuit in the heat-sink
temperature sensor.
O
×
1. Replace the outdoor control board. 8 136
F15
TE, TS sensors error
TE, TS sensor connections are
opposite.
O
×
1. Check for any wrong installation of
the heat exchange temperature
sensor (TE) and the suction
temperature sensor (TS).
4136
F24
PD sensor error
Open or short circuit the high pressure
sensor.
O
×
1. Check the value of PD sensor by the
remote controller.
2. Check the connection of PD sensor.
4136
F31
EEPROM error
O
×
1. Replace the outdoor control board.
PC board
<401, 601> MCC-1768
<801, 1101> MCC-1675
1136
H01
Compressor breakdown
Although operation has started,
operation frequency decreases and
operation stops.
O
×
1. Check the power supply voltage
(AC220-240 V±10%).
2. Over-loaded condition of the
refrigeration cycle.
3. Check that the service valve is fully
open.
8127
H02
Compressor lock
Over-current detection after compressor
start-up.
O
×
1. Defect of compressor (lock)
– Replace the compressor.
2. Defect of compressor wiring (open
phase).
8127
H03
Defect in the current detection circuit
O
×
1. Replace the outdoor control board.
PC board
<401, 601> MCC-1768
<801, 1101> MCC-1705
8—