Toshiba ESTIA HWS-1501CSHM3-E, Service Manual

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114
<Indication 1> <Indication 2> [Case thermostat operation]
→
See [H04] details
<Indication 1> <Indication 2> [Power source failure (Vdc)]
→
See [P05] details
<Indication 1> <Indication 2> [Hi pressure protection operation]
→
See [P20] details
[P05] <Indication 1> <Indication 2> [Power source failure (voltage defective, open phase)]
[P07] <Indication 1> <Indication 2> [Heat sink overheat failure]
Check code
Outdoor LED
indication
Check and Action procedure
(No specific description indicates outdoor unit parts.)
Check outdoor control board
If defective, replace it
Check electric work
Yes
No
Power voltage abnormal drops or rise
(AC220-230 V±10 %: single phase type)
(AC380-400 V±10 %: 3 phase type)
PC-Board
803H-E(MCC-1571)
1103 to 1403H-E (MCC-1571)
1103 to 1603H8(R)-E (MCC 1596)
Check outdoor control board
If defective, replace it
Apply radiation
grease as needed
Tighten screws
(Be sure to place
back the insulation
sheet between
Q300/400 and
the heat sink.)
Yes Yes
No
The screws are loose in
motor drive element,
Q200/300/400, of outdoor
control board and rectifier,
DB01/02/03. (MCC-1571)
Radiation grease was not
applied to backside of
Q200, DB01, DB02,
or DB03.
No
No
Is not the ventilation flue
of the heat sink blocked?
Is not the fan blocked?
(Short-circuit, etc.)
HWS-1103H8(R)-E to 1603H8(R)-E HWS-803H-E to 1603H-E
Remove obstacles,
Deal with short circuit
No
Is there no loosening
of screws of motor
drive element of outdoor
P.C. board (MCC-1596)
Q201?
Did not forget to apply
radiation grease to
rear side of Q201?