Toshiba MMD-AP0076BHP1-E Service Manual page 57

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
Flash
controller
display
F12 ALT
F13
ALT
F15 ALT
F16 ALT
F22 ALT
F23 ALT
F24 ALT
F31 SIM Outdoor EEPROM error
H01
H02
H03
H05
H05
H06
H07
H08
H14
H15
H16
H25
L04 SIM
L05 SIM
L06 SIM
– 57 –
Typical fault site
Outdoor suction
Outdoor suction temperature sensor (TS1) has
temperature sensor (TS1)
been open / short-circuited.
error
Outdoor IGBT built-in
Open-circuit or short-circuit of the outdoor IGBT
temperature sensor (TH)
built-in temperature sensor (TH) was detected.
error
Outdoor temperature
Wiring error in outdoor temperature sensors (TE1,
sensor (TE1, TL) wiring
TL) has been detected.
error
Outdoor pressure sensor Wiring error in outdoor pressure sensors (Pd, Ps)
(Pd, Ps) wiring error has been detected.
Outdoor discharge
Outdoor discharge temperature sensor (TD3) has
temperature sensor (TD3)
been open / short-circuited.
error
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
for header unit and continued operation for follower
unit)
Overcurrent of the inverter current (Idc) detection
Compressor breakdown
circuit was detected.
Compressor error (Lock) Compressor lock was detected.
Current error was detected while the compressor
Current detection circuit
was stopped.
error
Compressor 1 case thermo was activated for
Compressor 1 case
protection.
thermo activation
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 (TK1-5)
Activation of low-pressure
detects abnormally low oil level.
protection
Error in temperature
Temperature sensor for oil level detection (TK1-5)
sensor for oil level
has been open / short-circuited.
detection (TK1-5)
Compressor 2 case thermo was activated for
Compressor 2 case
protection.
thermo activation
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 (TK1-5)
error
despite compressor having been started.
Outdoor discharge Wiring / installation error or detachment of outdoor
temperature sensor (TD3) discharge temperature sensor (TD3) has been
wiring error detected.
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 has been set up as
unit (as displayed on
priority indoor unit.
priority indoor unit)
Duplicated priority indoor
More than one indoor unit has been set up as
unit (as displayed on
indoor unit other than priority indoor unit.
priority indoor unit)
Description of error