Toshiba RAS-M10PKVP-E Service Manual page 111

Check Outdoor
code LED display
l l l
¡¡ ¡
[1F]
[20]
llll
¥¡
l lll
¥ ¡
ll ll
¥ ¡
(Item without special mention indicates part of outdoor unit.)
[Compressor break down]
Is AC mains voltage correct?
(198 to 264V)
YES
Is wire connection correct?
Compressor lead
(Board side, Compressor Side),
Reactor lead, Power supply lead.
YES
Does an abnormal overload happen?
NO
There is a possibility that it is one of the following errors.
Confirm LED on outdoor P .C. board to judge which error it is.
PMV error for A room, B room, C room, D room, E room.
[PMV error for A room]
Is PMV under correct conditions?
YES
Check temp. sensor of A room indoor unit?
TA sensor, TC sensor
OK
[PMV error for B room]
Is PMV under correct conditions?
YES
Check temp. sensor of B room indoor unit?
TA sensor, TC sensor
OK
[PMV error for C room]
Is PMV under correct conditions?
YES
Check temp. sensor of C room indoor unit?
TA sensor, TC sensor
OK
– 111 –
Check and troubleshooting
NO
NO
YES
Check outdoor P.C.B MCC-1571.
NO
Error
Check outdoor P.C.B. MCC-5071
and indoor A room P.C. board.
NO
Error
Check outdoor P.C.B. MCC-5071
and indoor B room P.C. board.
NO
Error
Check outdoor P.C.B. MCC-5071
and indoor C room P.C. board.
Check wiring construction.
Ask repair of power supply.
Check wire connection
and correct it.
Remove and improve
the cause of overload.
Defect → Replace.
Repair defective position.
Replace defective part.
Correct connector.
Sensor error → Replace.
Defect → Replace.
Repair defective position.
Replace defective part.
Correct connector.
Sensor error → Replace.
Defect → Replace.
Repair defective position.
Replace defective part.
Correct connector.
Sensor error → Replace.
Defect → Replace.