Toshiba MMD-AP0186HP-E Service Manual page 70

Check code
Outdoor 7-segment display
Main
remote
Check
controller
code
F07 F07
F08 F08
F10
F11
F12 F12
F13
F15 F15
F16 F16
F22 F22
F23 F23
AMP Air Conditioning
Location
Description
of
detection
Sub-code
I/F TL sensor
error
I/F TO sensor
error
Indoor Indoor TA
unit sensor error
Indoor Indoor TF
unit sensor error
I/F TS1 sensor
error
01: Compressor 1 IPDU TH sensor
side error
02: Compressor 2
side
03: Compressor 3
side
I/F Outdoor
temperature
sensor wiring
error (TE1,
TL)
I/F Outdoor
pressure
sensor wiring
error (Pd, Ps)
I/F TD3 sensor
error
I/F Ps sensor
error
Error detection
System status
condition(s)
All stop Sensor resistance is infinity
or zero (open / short
circuit).
All stop Sensor resistance is infinity
or zero (open / short
circuit).
Stop of Sensor resistance is infinity
corresponding or zero (open / short
unit circuit).
Stop of Sensor resistance is infinity
corresponding or zero (open / short
unit circuit).
All stop Sensor resistance is infinity
or zero (open / short
circuit).
All stop Sensor resistance is infinity
or zero (open / short
circuit).
All stop During compressor
operation in HEAT mode,
TE1 continuously provides
temperature reading
higher than indicated by TL
by at least specified margin
for 3 minutes or more.
All stop Readings of high-pressure
Pd sensor and lowpressure
Ps sensor are
switched.
Output voltages of both
sensors are zero.
All stop Sensor resistance is infinity
or zero. (open / short
circuit)
All stop Output voltage of Ps
sensor is zero.
70
– –
www.ampair.co.uk | sales@ampair.co.uk
Check items (locations)
Check connection of TL sensor
connector.
Check resistance
characteristics of TL sensor.
Check for defect in outdoor
P.C. board (I/F).
Check connection of TO
sensor connector.
Check resistance
characteristics of TO sensor.
Check for defect in outdoor
P.C. board (I/F).
Check connection of TA
sensor connector and wiring.
Check resistance
characteristics of TA sensor.
Check for defect in indoor P.C.
board.
Check connection of TF
sensor connector and wiring.
Check resistance
characteristics of TF sensor.
Check for defect in indoor P.C.
board.
Check connection of TS1
sensor connector.
Check resistance
characteristics of TS1 sensor.
Check for defect in outdoor
P.C. board (I/F).
Defect in IGBT built-in
temperature sensor
→ Replace A3-IPDU P.C.
board.
Check installation of TE1 and
TL sensors.
Check resistance
characteristics of TE1 and TL
sensors.
Check for outdoor P.C. board
(I/F) error.
Check connection of high-
pressure Pd sensor connector.
Check connection of lowp-
ressure 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.
Check connection of TD3
sensor connector.
Check resistance
characteristics of TD3 sensor.
Check for defect in outdoor
P.C. board (I/F).
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.