Toshiba SMMS-e Quick Reference page 93

Troubleshooting
Check code
Outdoor 7-segment display
Sub-code
01: T 1
F12
03: T
–
F15
F16
–
F23 –
–
F24
–
F31
H05 –
H06 –
–
H07
01: TK1 sensor error
02: TK2 sensor error
H08
04: TK4 sensor error
05: TK5 sensor error
H15 –
01: TK1 oil circuit error
02: TK2 oil circuit error
H16
04: TK4 oil circuit error
05: TK5 oil circuit error
L04 –
Number of priority indoor units
L06 (check code L05 or L06 depending
on individual unit)
–
L08
–
L10
–
L17
L23 –
–
L28
Display of receiving unit
Indicator light block
TCC-LINK
central control
or main remote
Operation Timer Ready
Flash
controller
display
ALT
F12
ALT
F15
ALT
F16
ALT
F23
F24 ALT
SIM
F31
H05
H06
H07
H08
H15
H16
L04 SIM
L05 SIM
L06
SIM
SIM
(L08)
L10 SIM
SIM
L17
L23 SIM
SIM
L28
Typical problem site
Outdoor pressure sensor Wiring error in outdoor pressure sensors (Pd, Ps)
(Pd, Ps) wiring error has been detected.
Low pressure sensor (Ps)
Output voltage of low pressure sensor (Ps) is zero.
error
Output voltage of high pressure sensor (Pd) is zero
High pressure sensor (Pd)
or provides abnormal readings when compressors
error
have been turned off.
Outdoor EEPROM is faulty (alarm and shutdown
Outdoor EEPROM error for header unit and continued operation for follower
unit)
Outdoor discharge Wiring/installation error or detachment of outdoor
temperature sensor (TD1) discharge temperature sensor (TD1) has been
wiring error detected.
Activation of low-pressure Low pressure (Ps) sensor detects abnormally low
protection operating pressure.
Temperature sensor for oil level detection
Low oil level protection
(TK1,TK2,TK4,TK5) detects abnormally low oil
level.
Error in temperature
Temperature sensor for oil level detection
sensor for oil level
(TK1
detection
circuited.
(TK1 T )
Outdoor discharge Wiring/installation error or detachment of outdoor
temperature sensor (TD2) discharge temperature sensor (TD2) has been
wiring error detected.
No temperature change is detected by
Oil level detection circuit temperature sensor for oil level detection
error (TK1
been started.
Identical refrigerant line address has been
Duplicated outdoor
assigned to outdoor units belonging to different
refrigerant line address
refrigerant piping systems.
Duplicated priority indoor
More than one indoor unit have been set up as
unit (as displayed on
priority indoor unit.
priority indoor unit)
Duplicated priority indoor
unit (as displayed on More than one indoor unit
indoor unit other than as priority indoor unit.
priority indoor unit)
Indoor group address not Address setting
set or more indoor units (also detected at indoor end).
Outdoor unit capacity has not been set (after P.C.
Outdoor capacity net set
board replacement).
Old model outdoor unit (prior to 6 series) has been
Outdoor model
incompatibility error connected.
Too many outdoor units More than
connected.
connected
Description of problem
) has been open/short-
) despite compressor having
been set up
not been performed for one
outdoor units have been
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