Toshiba MMW-AP0481CHQ-E Service Manual page 57

Check code
Outdoor 7-segment display
Main
remote
Check
controller Sub-code
code
01: TK1 sensor trouble
02: TK2 sensor trouble
04: TK4 sensor trouble
05: TK5 sensor trouble
H08 H08
H15 H15 —
Location
Description
of
detection
I/F Trouble in
temperature
sensor for oil
level detection
I/F TD2 sensor
miswiring
(incomplete
insertion)
Check code 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).
All stop Sensor resistance is
infinity or zero (open/
short circuit).
All stop Sensor resistance is
infinity or zero (open/
short circuit).
All stop Discharge temperature of
(TD2) does not increase
despite compressor 2
being in operation.
– 57 –
Check items (locations)
• Check connection of TK1 sensor
connector.
• Check resistance characteristics
of TK1 sensor.
• Check for trouble in outdoor P.C.
board (I/F).
• Check connection of TK2 sensor
connector.
• Check resistance characteristics
of TK2 sensor.
• Check for trouble in outdoor P.C.
board (I/F).
• Check connection of TK4 sensor
connector.
• Check resistance characteristics
of TK4 sensor.
• Check for trouble in outdoor P.C.
board (I/F).
• Check connection of TK5 sensor
connector.
• Check resistance characteristics
of TK5 sensor.
• Check for trouble in outdoor P.C.
board (I/F).
• Check installation of TD2 sensor.
• Check connection of TD2 sensor
connector and wiring.
• Check resistance characteristics
of TD2 sensor.
• Check for trouble in outdoor P.C.
board (I/F).