Carrier MMY-MAP1204FT9UL - Check Codes: Sensor and System Errors (Outdoor)

– 142 –
Check code
Location
of
detection
System statusDescription
Error detection
condition(s)
Check items (locations)
Outdoor 7-segment display Main
remote
controller
Check
code
Sub-code
I/F
F08 —F08
All stop Sensor resistance is infinity
or zero (open/short circuit).
• Check connection of TO
sensor connector.
• Check resistance
characteristics of TO sensor.
• Check for defect in outdoor
P.C. board (I/F).
TO sensor error
Indoor unit
——F10
Stop of
corresponding
unit
Sensor resistance is infinity
or zero (open/short circuit).
• Check connection of TA
sensor connector and wiring.
• Check resistance
characteristics of TA sensor.
• Check for defect in indoor
P.C. board.
Indoor TA sensor
error
Indoor unit
——F11
Stop of
corresponding
unit
Sensor resistance is infinity
or zero (open/short circuit).
• Check connection of TF
sensor connector and wiring.
• Check resistance
characteristics of TF sensor.
• Check for defect in indoor
P.C. board.
Indoor TF sensor
error
I/F
F12 —F12
All stop Sensor resistance is infinity
or zero (open/short circuit).
• Check connection of TS1, TS2
sensor connector.
• Check resistance
characteristics of TS1, TS2
sensor.
• Check for defect in outdoor
P.C. board (I/F).
01:
TS1 sensor error
02:
TS2 sensor error
I/F
F15 —F15
All stop During compressor operation in
HEAT mode, TE1 continuously
provides temperature reading
higher than indicated by TL by
at least specified margin for 3
minutes or more.
• Check installation of TE1 and
TL sensors.
• Check resistance
characteristics of TE1 and TL
sensors.
• Check for outdoor P.C. board
(I/F) error.
Outdoor
temperature
sensor wiring
error (TE1, TL)
I/F
F16 —F16
All stop Readings of high-pressure
Pd sensor and lowpressure
Ps sensor are switched.
Output voltages of both sensors
are zero.
• Check connection of high-
pressure Pd sensor connector.
• Check connection of low-
pressure Ps sensor connector.
• Check for defect in pressure
sensors Pd and Ps.
• Check for error in outdoor
P.C. board (I/F).
• Check for deficiency in
compressive output of
compressor.
Outdoor
pressure
sensor wiring
error (Pd, Ps)
I/F
F22 —F22
All stop Sensor resistance is infinity
or zero. (open/short circuit)
• Check connection of TD3
sensor connector.
• Check resistance
characteristics of TD3 sensor.
• Check for defect in outdoor
P.C. board (I/F).
TD3 sensor error
I/F
F23 —F23
All stop Output voltage of Ps
sensor is zero.
• Check for connection error
involving Ps sensor and Pd
sensor connectors.
• Check connection of Ps
sensor connector.
• Check for defect in Ps sensor.
• Check for deficiency in
compressive output of
compressor.
• Check for defect in 4-way
valve.
• Check for defect in outdoor
P.C. board (I/F).
• Check for defect in SV4, SV5
circuit.
Ps sensor error
IPDU01:
Compressor 1 side
02:
Compressor 2 side
03:
Compressor 3 side
F13F13
All stop Sensor resistance is infinity
or zero (open/short circuit).
• Defect in IGBT built-in
temperature sensor
→
Replace A3-IPDU
P.C. board.
TH sensor
error
I/F
F24 —F24
All stop Output voltage of Pd sensor is
zero (sensor open-circuited).
Pd > 602 psi (4.15 MPa) despite
compressor having been turned
off.
Pd sensor error
Indoor unit
——F29
Stop of
corresponding
unit
Indoor P.C. board
does not operate normally.
• Check for defect in indoor P.C.
board (faulty EEPROM)
Other indoor error