Toshiba MMY-MAP0806HT7(J)P, Service Manual

Page: 177 / 350

Check code
Location
of
detection
Description
System
status
Error detection
condition(s)
Check items (locations)
Main
remote
controller
Outdoor 7-segment display
Check
code
Sub-code
F08 F08 –
I/F TO sensor
error All stop Sensor resistance is infinity
or zero (open/short circuit). • Check connection of TO
sensor connector.
• Check resistance
characteristics of TO sensor.
• Check for defect in outdoor
P.C. board (I/F).
F10 – –
Indoor
unit Indoor TA
sensor error Stop of
corresponding
unit Sensor resistance is infinity
or zero (open/short circuit). • Check connection of TA
sensor connector and wiring.
• Check resistance
characteristics of TA sensor.
• Check for defect in indoor P.C.
board.
F11 – –
Indoor
unit Indoor TF
sensor error Stop of
corresponding
unit Sensor resistance is infinity
or zero (open/short circuit). • Check connection of TF
sensor connector and wiring.
• Check resistance
characteristics of TF sensor.
• Check for defect in indoor P.C.
board.
F12 F12
I/F
TS1/TS3
sensor error
All stop Sensor resistance is infinity
or zero (open/short circuit). •
Check connection of TS1/
TS3 sensor connector
• Check resistance
characteristics of TS1
/TS3
sensor.
• Check
for defect
F13 F13
01: Compressor 1 side
02: Compressor 2 side
IPDU TH sensor
error All stop Sensor resistance is infinity
or zero (open/short circuit). • Defect in
IPM
built-in
temperature sensor
Replace A3-IPDU P.C.
board.
F15 F15 –
I/F Outdoor
temperature
sensor wiring
error (T
E
1,
TL
1
)
All stop During compressor
operation in HEAT mode,
T
L
1 continuously provides
temperature reading higher
than indicated by TL
1
by at
least specified margin for 3
minutes or more.
• Check installation of
T
E
1 and TL
1
sensors.
• Check resistance
characteristics of TE1 and TL
1
sensors.
• Check for outdoor P.C. board
(I/F) error.
F16 F16 –
I/F Outdoor
pressure
sensor wiring
error (Pd, Ps) All stop Readings of high-pressure
Pd sensor and low-
pressure Ps sensor are
switched.
Output voltages of both
sensors are zero. • Check connection of high-
pressure Pd sensor connector.
• Check connection of low-
pressure Ps sensor connector.
• Check for defect in pressure
sensors Pd and Ps.
• Check for error in outdoor P.C.
board (I/F).
• Check for deficiency in
compressive output of
compressor.
F23 F23 –
I/F Ps sensor
error All stop Output voltage of Ps
sensor is zero. • Check for connection error
involving Ps sensor and Pd
sensor connectors.
• Check connection of Ps sensor
connector.
• Check for defect in Ps sensor.
• Check for deficiency in
compressive output of
compressor.
• Check for defect in 4-way
valve.
• Check for defect in outdoor
P.C. board (I/F).
• Check for defect in SV4 circuit.
F24 F24 –
I/F Pd sensor
error All stop Output voltage of Pd
sensor is zero (sensor
open-circuited).
Pd > 4.15MPa despite
compressor having been
turned off. • Check connection of Pd
sensor connector.
• Check for defect in Pd sensor.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TG1/TG2
sensor connectors.
• Check resistance characteristics
of TG1/TG2 sensors.
• Check for defect in outdoor P.C.
board (I/F).
Sensor resistance is infinity
or zero (open/short circuit).
All stop
TG 1 / TG2
sensor error
I/F
F0
9
F0
9
01:
TG1 sersor error
02:
TG2 sersor error
01:
TS1 sersor error
0
3
:
TS3 sersor error
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