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Error mode detected by remote controller or central controller (TCC-LINK)
Check code
No communication with master indoor unit
Not displayed at all
Remote controller wiring is not correct.
(Operation on
remote controller
Power of indoor unit is not turned on.
is impossible.)
Automatic address cannot be completed.
No communication with master indoor unit
E01
Disconnection of inter-unit wire between
∗2
remote controller and master indoor unit
(Detected by remote controller side)
Signal send error to indoor unit
E02
(Detected by remote controller side)
There are multiple main remote controllers.
E09
(Detected by remote controller side)
L20
Duplicated indoor central addresses on
communication of central control system
Central controller
(Detected by indoor/central controller side)
L20
—
∗3
Communication circuit error of central
Central controller
control system
(Send)
(Detected by central controller side)
C05
(Receive)
C06
—
Indoor Gr sub unit error
(Detected by central controller side)
Central controller
P30
∗2 The check code cannot be displayed by the wired remote controller.
(Usual operation of air conditioner becomes unavailable.)
For the wireless models, an error is notified with indication lamp.
∗3 This trouble is related to communication of remote controller (A, B), central system (TCC-LINK U3, U4), and
[E01], [E02], [E03], [E09] or [E18] is displayed or no check display on the remote controller according to the
contents.
SVM-12085_051-114.indd 55
SVM-12085_051-114.indd 55
Operation of diagnostic function
Cause of operation
air conditioner
(Automatic reset)
∗ If center exists,
operation continues.
(Automatic reset)
∗ If center exists,
operation continues.
continues operation.)
(Automatic reset)
(By remote controller)
Continuation/Stop
to each case)
Status of
Condition
Power supply error of remote controller, Indoor
EEPROM error
1. Check remote controller inter-unit wiring.
2. Check remote controller.
3. Check indoor power wiring.
Stop
—
4. Check indoor P .C. board.
5. Check indoor EEPROM.
Receiving error from remote controller
Stop
1. Check remote controller inter-unit wiring.
Displayed when
2. Check remote controller.
error is detected
3. Check indoor power wiring.
4. Check indoor P .C. board.
Stop
Sending error of remote controller
Displayed when
1. Check sending circuit inside of remote
error is detected
1. In 2-remote controllers (including wireless),
Stop
Displayed when
(Sub unit
error is detected
1. Check setting of central control system
Stop
Displayed when
error is detected
2. Check network adapter P .C. board.
1. Check communication wire / miswiring
2. Check communication (U3, U4 terminals)
3. Check network adapter P .C. board.
Continues
Displayed when
4. Check central controller (such as central
error is detected
5. Check terminal resistance. (TCC-LINK)
Displayed when
Check the check code of the corresponding
(According
error is detected
unit from remote controller.
– 55 –
FILE NO. SVM-12085
Judgment and measures
(including socket insertion)
→ Automatic address repeating phenom-
enon generates.
controller.
→ Replace remote controller.
there are multiple main units.
Check that there are 1 main remote
controller and other sub remote controllers.
network address. (Network adapter SW01)
control remote controller, etc.)
12/06/12 11:15 AM
12/06/12 11:15 AM
- Quick Links:
- Service Manual
- Specifications
- Outdoor Unit
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Table of Contents
Troubleshooting
