3-85
Check code
Operation cause
[bE]
Low-pressure protective operation
1. Ps sensor error
2. Service valve closed
3. Indoor fan capacitor error
4. Indoor/outdoor PMV blockage
5. Indoor heat exchanger blockage
6. SV2 circuit
7. Incorrect wiring of communication cable between indoor
and outdoor units
( )
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
Is there blockage on
outdoor heat exchanger?
Are gas pipe,liquid pipe,
and service valve of the
outdoor unit fully open?
Is characteristics of
low-pressure sensor normal?
Is SV2 bypass circuit normal?
Is wiring correct?
Insufficient refrigerant,
blockage, pipe breakage
Repair defective position.
(Check miswiring of the outdoor unit according to miswiring check function.)
Check there is no blockage or pipe breakage, and then add
refrigerant according to judgment of refrigerant amount.
1. Connector connection
2. Heat exchanger
3. Motor
Is outdoor fan motor normal?
Check outdoor P.C. board.
Defective Replacement
Cleaning
Open service valve fully.
Replace low-pressure sensor.
Modify SV2 bypass circuit.
Set normal wiring.
Does heating outdoor
fan operate normally?
YES
YES
YES
NO
NO
NO
Is there blockage of indoor
filter or heat exchanger?
Repair defective position.
1. Connection
2. Capacitor
3. Motor
Are the following items related
to indoor fan motor normal?
Check indoor P.C. board.
Defective Replacement
Cleaning
Does cooling indoor
fan normally operate?
Содержание MMC-P0151H
Страница 198: ...3 195 108 109 101 102 133 106 131 105 135 128 104 103 111 110 123 116 132 119 120 121 MMY MP06018 ...
Страница 206: ...3 203 108 109 101 102 133 106 131 105 135 128 104 103 111 110 123 116 132 119 120 121 MMY MP0601H8 ...
Страница 214: ...3 211 108 109 101 102 133 106 131 105 135 128 104 103 111 110 123 116 132 119 120 121 MMY MP0601H7 ...
Страница 216: ...TOSHIBA CARRIER CORPORATION 336 TADEHARA FUJI SHI SHIZUOKA KEN 416 8521 JAPAN ...