Toshiba ESTIA HWS-1102H-E, Service Manual

Page: 100 / 168

99
Toshiba
No code <Indication 1> <Indication 2> [Discharge abnormality] Compressor's loss of synchronism due to rapid load change, etc.
* Although the outdoor LED indicates abnormality, the compressor restarts and no abnormality
is confirmed.
* This may occur due to the open phase of the compressor or wiring detach.
[F04] <Indication 1> <Indication 2> [Discharge temperature sensor (TD) failure]
[F06] <Indication 1> <Indication 2> [Heat exchanger temperature sensor (TE) failure]
[F07] <Indication 1> <Indication 2> [Heat exchanger temperature sensor (TL) failure]
[F08] <Indication 1> <Indication 2> [Outside air temperature sensor (TO) failure]
Check code
Outdoor LED
indication
Check and Action procedure
(No specific description indicates outdoor unit parts.)
TD sensor connector
(CN603) is connected Correct TD sensor
connection
Replace outdoor control board
No
TD sensor resistance
characteristic is normal
Replace TD sensor
No
See the
characteristic table
on page 101
Yes
Yes
TE sensor connector (CN601)
is connected Correct TE sensor
connection
Replace outdoor control board
No
Yes
TE sensor resistance
characteristic is normal
Replace TE sensor
No
See the
characteristic table
on page 101
Yes
TL sensor connector (CN604)
is connected Correct TL sensor
connection
Replace outdoor control board
No
YES
TL sensor resistance
characteristic is normal
Replace TL sensor
No
See the
characteristic table
on page 101
YES
TO sensor connector (CN602)
is connected
Correct TO sensor
connection
Replace outdoor control board
No
Yes
TO sensor resistance
characteristic is normal
Replace TO sensor
No
See the
characteristic table
on page 101
Yes
+00A09-002_01EN_SVM_ALL_Air_to_Water.book Page 99 Monday, October 5, 2009 2:09 PM