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Hitachi RAS-8.0HNBRMQ1 - Page 102

Hitachi RAS-8.0HNBRMQ1
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95
Alarm
Code
44
Activation of Low Pressure Increase Protection
The alarm code is ashed on the 7-segment display of the outdoor unit.
The alarm code is displayed on the wired controller of the indoor unit.
If the suction pressure (Ps) of the compressor is more than 1.4 MPa for a minute, the compressor stops. The
operation automatically restarts after three minutes. If this occurs again twice in the next 30 minutes, this
alarm code is displayed.
TROUBLESHOOTING

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