Toshiba HWT-602S21SM3W-E(TR) Service Manual page 144

Outdoor LED
Check code
indication
[H01]
[H02]
(No specific description indicates outdoor unit parts.)
[Compressor break down]
Power voltage is normal
AC220-240 V±10%
Yes
Wiring connection is normal
Compressor lead (Board side, compressor
side reactor lead, power lead)
Yes
Abnormally over loaded
No
Check outdoor control board
If defective, replace it
[Compressor lock]
Power voltage is normal
AC220-240 V±10%
Yes
Wiring connection is normal
Compressor lead (board side,
compressor side) reactor, power lead
Yes
Compressor is normal
Yes
Refrigerant stays inside
Pulse motor valve operates
normally
Check outdoor board
If defective, replace it
143
Check and Action procedure
No
No
Yes
PC boar
<401,601> MCC-1768
<801,1101> MCC-1705
<1401> MCC-1758
(3 phase)<801,1101,1401> MCC-1780
No
No
No
No
Yes
No
Yes
PC boar
<401,601> MCC-1768
<801,1101> MCC-1705
<1401> MCC-1758
(3 phase)<801,1101,1401> MCC-1780
Improve power line
Check and correct wiring
connection
Deal with or remove causes
Improve power line
Check and correct
wiring connection
Lock compressor and
replace it.
TE, TS sensor pulse
motor valve check
If defective, replace