Carrier MMY-MAP0724FT9UL Service Manual page 134

Check code
Outdoor 7-segment display
Sub-code
P13 —
01: TS condition
P15
02: TD condition
P17 —
P18 —
P19
Outdoor unit No. detected
P20 —
(Errors detected by IPDU featuring in SMMS-i standard outdoor unit - typical examples)
Check code
Outdoor 7-segment display
Sub-code
01: Compressor 1
F13
02: Compressor 2
03: Compressor 3
01: Compressor 1
H01
02: Compressor 2
03: Compressor 3
01: Compressor 1
H02
02: Compressor 2
03: Compressor 3
01: Compressor 1
H03
02: Compressor 2
03: Compressor 3
01: Compressor 1
P04
02: Compressor 2
03: Compressor 3
01: Compressor 1
P07
02: Compressor 2
03: Compressor 3
∗
0 : IGBT circuit
∗
1 : Position detection
circuit error
∗
3 : Motor lockup error
∗
4 : Motor current detection
∗
C : TH sensor error
P22
∗
D : TH sensor error
∗
E : Inverter DC voltage error
(outdoor fan)
Note:
Although letters 0 to
F appear at locations
∗
indicated by " ",
please ignore them.
01: Compressor 1
P26
02: Compressor 2
03: Compressor 3
01: Compressor 1
P29
02: Compressor 2
03: Compressor 3
NOTE
The above check codes are examples only, and different check codes may be displayed depending on the
outdoor unit configuration (e.g. a Super Modular multi system). For details, see the service manual for the
outdoor unit.
Display of receiving unit
TCC-LINK Indicator light block
central control
or main remote
Operation Timer Ready
controller
display
P13
P15
P17
P18
P19
P20
Display of receiving unit
Indicator light block
TCC-LINK
central control
or main remote
Operation Timer Ready
controller
display
F13
H01
H02
H03
P04
P07
P22
P26
P29
Typical fault site
Flash
Outdoor liquid backflow detection
ALT
error
ALT
Gas leak detection
Outdoor discharge (TD2)
ALT
temperature error
Outdoor discharge (TD3)
ALT
temperature error
ALT
4-way valve reversing error
Activation of high-pressure
ALT
protection
Typical fault site
Flash
Error in temperature sensor built
ALT
into indoor IGBT (TH)
Compressor breakdown
Compressor error (lockup)
Current detection circuit error
ALT
Activation of high-pressure SW
ALT
Heat sink overheating error
ALT
Outdoor fan IPDU error
Activation of G-Tr (IGBT)
ALT
short-circuit protection
Compressor position detection
ALT
circuit error
– 134 –
Description of error
State of refrigerant cycle circuit indicates liquid
backflow operation.
Outdoor suction temperature sensor (TS1) detects
sustained and repeated high temperatures that
exceed standard value.
Outdoor discharge temperature sensor (TD2) detects
abnormally high temperature.
Outdoor discharge temperature sensor (TD3) detects
abnormally high temperature.
Abnormality in refrigerating cycle is detected
during heating operation.
High pressure (Pd) sensor detects high pressure
that exceeds standard value.
Description of error
Temperature sensor built into indoor IGBT (TH)
has been open/short-circuited.
Inverter current (Idc) detection circuit detects
overcurrent.
Compressor lockup is detected
Abnormal current is detected while inverter
compressor is turned off.
High-pressure SW is activated.
Temperature sensor built into IGBT (TH) detects
overheating.
Outdoor fan IPDU detects error.
Short-circuit protection for compressor motor
driver circuit components is activated (momentary
overcurrent).
Compressor motor position detection error is
detected.