Hitachi RAS-8.0HNBRMQ1 - Page 93

86
Alarm
Code
20
Abnormality of Discharge Gas Thermistor
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The alarm code is ashed on the 7-segment display of the outdoor unit.
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The alarm code is displayed on the wired controller of the indoor unit.
★
This alarm code is displayed when a short circuit (0.9kΩ or less) or disconnection (5946kΩ or more) of
the thermistor is detected during a heating or cooling operation.
TROUBLESHOOTING