Check code
Location
of
detection
Description
System status
Check code detection
condition(s)
Check items (locations)
• Check for failure in outdoor
P.C. board (I/F).
• Check wiring of outdoor
power supply.
• Check power supply
voltage.
Power detection
trouble / Open
phase detection
/ Power supply
miswiring
I/F
00: Power
detection
trouble
01: Open phase
02: Power supply
miswiring
All stop
• Open phase is detected
when power is turned on.
• Inverter DC voltage is too
high (overvoltage) or too
low (undervoltage).
P05
P05
Main
remote
controller
Outdoor 7-segment display
Check
code
Sub-code
Compressor
P.C. board
Compressor
Vdc trouble
1
∗
: Compressor
1
side
2
∗
: Compressor
2
side
• Check outdoor fan system
trouble.
• Check IPM and heat sink
for thermal performance
for failure installation.
(e.g. mounting screws and
thermal conductivity)
• Check for failure in
Compressor P.C. board.
(failure IPM built-in
temperature sensor (TH))
Heat sink
overheating
trouble
Compressor
P.C. board
1
∗
: Compressor
1
side
2
∗
: Compressor
2
side
All stop
Temperature sensor built
into IPM (TH) is overheated.
P07
P07
• Check outdoor fan system
trouble.
• Check IPM and heat sink
for thermal performance for
troubled installation.
(e. g. mounting screws and
thermal conductivity)
• Check for failure in
compressor P.C. board.
(failure IPM built-in
temperature sensor (TH))
• Check shortage of refrigerant.
• Check outdoor service
valves.
• Check connection of TL2
sensor.
• Check resistance
characteristics of TL2 sensor.
• Check resistance
characteristics of TO sensor.
• Check malfunctions of Pd
and Ps sensors.
• Check outdoor I/F P.C.
board malfunction.
• Check PMV2 and PMV3
Heat sink
overheating
trouble
Heat sink dew
condensation
trouble
01: Compressor
1
heat sink
trouble
02: Compressor
2
heat sink
trouble
04: Heat sink
dew
condensation
I/F
All stop
Condensation detection on
heat sink has occurred four
times or more in operation.
Temperature sensor built
into IPM (TH) is overheated.
• Check connection of high-
pressure SW connector.
• Check for failure in Pd
pressure sensor.
• Check outdoor service
valves (gas side, liquid
side) to confirm full
opening.
• Check for failure in outdoor
fan.
• Check for failure in outdoor
fan motor.
• Check outdoor PMVs
(PMV1, 2, 3) for clogging.
• Check indoor/outdoor heat
exchangers for clogging.
• Check for short-circuiting of
outdoor suction/discharge
air flows.
• Check for failure in outdoor
P.C. board (I/F).
• Check for trouble in indoor
fan system (possible cause
of air flow reduction).
• Check opening status of
indoor PMV.
• Check indoor-outdoor
communication line for
wiring trouble.
• Check for failure operation
of check valve in discharge
pipe convergent section.
• Check gas balancing SV4
valve circuit.
• Check for refrigerant
overcharging.
Activation of
high-pressure
SW
I/F
1
∗
: Compressor
1
side
2
∗
: Compressor
2
side
All stop
High-pressure SW is
activated.
P04
P04
- 145 -
Summary of Contents for MMC-UP0151HP-E
Page 41: ...2 2 Ceiling type MMC UP0151HP E TR MMC UP0181HP E TR 41 ...
Page 42: ...MMC UP0241HP E TR MMC UP0271HP E TR 6 4 12 7 42 ...
Page 43: ...MMC UP0361HP E TR MMC UP0481HP E TR MMC UP0561HP E TR 43 ...
Page 58: ...3 WIRING DIAGRAMS 3 1 4 way cassette type MMU UP HP E TR 58 ...
Page 59: ...3 2 Ceiling type MMC UP HP E TR 59 ...
Page 60: ...3 3 Concealed Duct Standard type MMD UP BHP E TR 60 ...
Page 61: ...3 4 Concealed Duct High Static Pressure type MMD UP HP E TR 61 ...
Page 62: ...Concealed Duct High Static Pressure type MMD UP HP E TR 62 ...
Page 63: ...3 5 Concealed Duct High Static Pressure fresh air intake type MMD UP HFP E TR 63 ...
Page 65: ...3 7 High wall type MMK UP HP E TR 65 ...
Page 249: ...MMU UP0361HP E TR MMU UP0481HP E TR MMU UP0561HP E TR 268 267 213 214 249 ...
Page 252: ...12 2 Ceiling type MMC UP0151HP E TR MMC UP0181HP E TR 025 024 252 ...
Page 254: ...MMC UP0241HP E TR MMC UP0271HP E TR 029 028 254 ...
Page 256: ...MMC UP0361HP E TR MMC UP0481HP E TR MMC UP0561HP E TR 051 028 027 256 ...
Page 261: ...MMD UP0151BHP E TR MMD UP0181BHP E TR 240 239 238 233 235 261 ...
Page 263: ...MMD UP0241BHP E TR MMD UP0271BHP E TR MMD UP0301BHP E TR 240 239 238 233 235 263 ...
Page 265: ...MMD UP0361BHP E TR MMD UP0481BHP E TR MMD UP0561BHP E TR 240 239 238 233 235 265 ...