7
6
Wired
remote
controller
H04
H05
H06
H07
H08
Outdoor 7-segment display
Check code
Auxiliary code
H04
—
H05
—
H06
—
H07
—
H08
01: TK1 sensor error
02: TK2 sensor error
03: TK3 sensor error
04: TK4 sensor error
05: TK5 sensor error
Detected
position
I/F
I/F
I/F
I/F
I/F
Check code name
Compressor 1 case
thermo operation
Outdoor unit discharge
temp. sensor (TD1)
miswiring
Low-pressure protective
operation
Protection for oil level
drop detection
Oil level detective temp
sensor error
Status
All stop
All stop
All stop
All stop
All stop
All stop
All stop
All stop
All stop
Error detection condition
Compressor 1 case thermostat performed
protective operation.
While compressor 1 is operating, the discharge
temp. (TD1) does not rise up.
Low-pressure Ps detected operation lower than
0.02MPa.
The operating compressor detected oil shortage
continuously for 2 hours.
• Resistance value of sensor is infinite or zero.
(Open/Short)
• Resistance value of sensor is infinite or zero.
(Open/Short)
• Resistance value of sensor is infinite or zero.
(Open/Short)
• Resistance value of sensor is infinite or zero.
(Open/Short)
• Resistance value of sensor is infinite or zero.
(Open/Short)
Check item (position)
• Check compressor 1 case thermo circuit. (Connector, cable, P.C. board)
• Check full opening of service valve. (Gas and liquid side)
• Check outdoor PMV clogging. (PMV1, 2)
• Check SV41 circuit leakage.
• Check miscabling/misinstallation of SV41 and SV42.
• Check valve open status of indoor PMV.
• Check 4-way valve error.
• Check refrigerant shortage.
• Check mounting of TD1 sensor.
• Check connection and wiring of TD1sensor connector.
• Check characteristics of TD1 sensor resistance value.
• Check outdoor unit P.C. board (I/F) error.
• Check full opening of service valve.
(Discharge gas, suction gas and liquid side)
• Check outdoor PMV clogging. (PMV1, 2)
• Check SV2 circuit and SV4 circuit error.
• Check low-pressure Ps sensor error.
• Check indoor air filter clogging.
• Check valve open of indoor PMV.
• Check refrigerant pipe clogging.
• Check outdoor fan operation.
(All heating, mainly heating, part cooling operation)
• Check refrigerant shortage.
<Check all the outdoor units in the corresponding line.>
• Check full opening of service valve of balance pipe.
• Check connection and installation of TK1, TK2, TK3, and TK4 sensors.
• Check characteristics of TK1, TK2, TK3, and TK4 resistance values.
• Check gas leak and oil leak in the same line.
• Check refrigerant stagnation in compressor.
• Check error of SV3A, SV3B, SV3C, SV3D, and SV3E valves.
• Check clogging of oil separator oil return circuit.
• Check clogging of oil-equation circuit.
• Check connection of TK1 sensor connector.
• Check characteristics of TK1 sensor resistance value.
• Check outdoor P.C. board (I/F) error.
• Check connection of TK2 sensor connector.
• Check characteristics of TK2 sensor resistance value.
• Check outdoor P.C. board (I/F) error.
• Check connection of TK3 sensor connector.
• Check characteristics of TK3 sensor resistance value.
• Check outdoor P.C. board (I/F) error.
• Check connection of TK4 sensor connector.
• Check characteristics of TK4 sensor resistance value.
• Check outdoor P.C. board (I/F) error.
• Check connection of TK5 sensor connector.
• Check characteristics of TK5 sensor resistance value.
• Check outdoor P.C. board (I/F) error.
Check code
Содержание MML-AP0074NH-E
Страница 14: ...5 Hz Φ Φ Φ 2 SPECIFICATIONS 2 1 Indoor Unit 13 ...
Страница 15: ...6 Hz Φ Φ Φ 14 ...
Страница 132: ...TOSHIBA CARRIER THAILAND CO LTD ...