Toshiba MMD-AP0186HP1-E Service Manual page 58

Check code
Outdoor 7-segment display
Sub-code
F12 –
01: Compressor 1
02: Compressor 2
F13
03: Compressor 3
F15 –
F16 –
F22 –
F23 –
F24 –
F31 –
01: Compressor 1
H01 02: Compressor 2
03: Compressor 3
01: Compressor 1
02: Compressor 2
H02
03: Compressor 3
01: Compressor 1
H03
02: Compressor 2
03: Compressor 3
H04
H05 –
H06 –
H07 –
01: TK1 sensor error
02: TK2 sensor error
H08
03: TK3 sensor error
04: TK4 sensor error
05: TK5 sensor error
H14 –
H15 –
01: TK1 oil circuit error
02: TK2 oil circuit error
H16
03: TK3 oil circuit error
04: TK4 oil circuit error
05: TK5 oil circuit error
H25 –
L04 –
Number of priority indoor units
L06
(check code L05 or L06 depending
on individual unit)
Display of receiving unit
TCC-LINK
Indicator light block
central control
or main remote
Operation Timer Ready
controller
display
F12
F13
F15
F16
F22
F23
F24
F31
H01
H02
H03
H05
H05
H06
H07
H08
H14
H15
H16
H25
L04
L05
L06
– 58 –
Typical fault site
Flash
Outdoor suction
ALT
temperature sensor (TS1)
error
Outdoor IGBT built-in
temperature sensor (TH)
ALT
error
Outdoor temperature
ALT
sensor (TE1, TL) wiring
error
Outdoor pressure sensor
ALT
(Pd, Ps) wiring error
Outdoor discharge
ALT
temperature sensor (TD3)
error
Low pressure sensor (Ps)
ALT
error
High pressure sensor (Pd)
ALT
error
SIM Outdoor EEPROM error
Compressor breakdown
Compressor error (Lock)
Current detection circuit
error
Compressor 1 case
thermo activation
Outdoor discharge
temperature sensor (TD1)
wiring error
Activation of low-pressure
protection
Activation of low-pressure
protection
Error in temperature
sensor for oil level
detection (TK1-5)
Compressor 2 case
thermo activation
Outdoor discharge
temperature sensor (TD2)
wiring error
Oil level detection circuit
error
Outdoor discharge
temperature sensor (TD3)
wiring error
Duplicated outdoor
SIM
refrigerant line address
Duplicated priority indoor
SIM
unit (as displayed on
priority indoor unit)
Duplicated priority indoor
unit (as displayed on
SIM
indoor unit other than
priority indoor unit)
Description of error
Outdoor suction temperature sensor (TS1) has
been open / short-circuited.
Open-circuit or short-circuit of the outdoor IGBT
built-in temperature sensor (TH) was detected.
Wiring error in outdoor temperature sensors (TE1,
TL) has been detected.
Wiring error in outdoor pressure sensors (Pd, Ps)
has been detected.
Outdoor discharge temperature sensor (TD3) has
been open / short-circuited.
Output voltage of low pressure sensor (Ps) is zero.
Output voltage of high pressure sensor (Pd) is zero
or provides abnormal readings when compressors
have been turned off.
Outdoor EEPROM is faulty (alarm and shutdown
for header unit and continued operation for follower
unit)
Overcurrent of the inverter current (Idc) detection
circuit was detected.
Compressor lock was detected.
Current error was detected while the compressor
was stopped.
Compressor 1 case thermo was activated for
protection.
Wiring / installation error or detachment of outdoor
discharge temperature sensor (TD1) has been
detected.
Low pressure (Ps) sensor detects abnormally low
operating pressure.
Temperature sensor for oil level detection (TK1-5)
detects abnormally low oil level.
Temperature sensor for oil level detection (TK1-5)
has been open / short-circuited.
Compressor 2 case thermo was activated for
protection.
Wiring / installation error or detachment of outdoor
discharge temperature sensor (TD2) has been
detected.
No temperature change is detected by
temperature sensor for oil level detection (TK1-5)
despite compressor having been started.
Wiring / installation error or detachment of outdoor
discharge temperature sensor (TD3) has been
detected.
Identical refrigerant line address has been
assigned to outdoor units belonging to different
refrigerant piping systems.
More than one indoor unit has been set up as
priority indoor unit.
More than one indoor unit has been set up as
priority indoor unit.