3-64
Check code
Operation cause
[21]
Inverter high-pressure SW system alarm
1. Inverter high-pressure SW error
2. Inverter IOL operation
3. Service valve closed
4. Outdoor fan, capacitor error
5. Indoor/Outdoor PMV blockage
6. Outdoor heat exchanger blockage
7. SV2 circuit blockage
8. Indoor - Outdoor communication error
9. Pd sensor error
10. Refrigerant over charge
YES
NO
YES
NO
YES
NO
YES
YES
YES
YES
NO
NO
NO
YES
NO
YES
NO
YES
YES
NO
NO
Check and modify wiring.
Repair defective position.
Replace high-pressure sensor.
Does
inverter
high-pressure switch operate?
Are
inverter high-pressure
switch parts normal?
Is high-pressure sensor
characteristics normal?
Does cooling outdoor fan
normally operate?
A
Are the connection, capacitor,
and fan motor normal?
Repair SV2 bypass circuit.
(Coil error, disconnection of wiring, etc.)
*
1 : In cooling only model
Refrigerant over charge
Blockage
Pipe breakage
Abnormal overload
Is there a cause to hinder
heat exchanger of outdoor unit?
Blockage of heat exchanger
Short circuit
Is SV2 bypass circuit normal?
Is service valve fully open?
Check parts.
Defective Replacement
Open service valve fully.
Remove cause.
Is inverter IOL circuit normal?
Is circuit wiring normal?
See judgment flow of
IPDU
IOL operation circuit E5.
Check outdoor IPDU P.C.board.
Defective Replacement
*
1
Содержание MMC-P0151H
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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 ...