7 Times 6 Times Continuous 76 3-Way valve thermistor error
3-Way Valve Thermistor Error – When 2-way valve temperature thermistor is open or short-circuited while
power is on or while running the compressor.
-Check for erroneous connection or removed connector.
-Check resistance of thermistor.
-Check voltage to thermistor.
7 Times 7 Times Continuous 77 Heat sink thermistor error
Heat Sink Thermistor Error – When heat-sink temperature thermistor is open or a short-circuit is detected at
power up or while running the compressor.
-Check for erroneous connection or removed connector.
-Check resistance of thermistor.
-Check voltage to thermistor.
8 Times 2 Times Continuous 82
Sub-cool heat ex. gas inlet
thermistor error / Sub cool heat
ex. gas outlet thermistor error
Sub-Cool Heat Ex. Gas Inlet Thermistor Error / Sub Cool Heat Ex. Gas Outlet Thermistor Error – Sub cooling heat
exchanger gas inlet temperature thermistor short or open detected.
-Check for erroneous connection or removed connector.
-Check resistance of thermistor.
-Check voltage to thermistor.
8 Times 3 Times Continuous 83 Liquid pipe thermistor
Liquid Pipe Thermistor Error - Heat exchanger liquid pipe thermistor short or open detected.
Check for erroneous connection or removed connector.
-Check resistance of thermistor.
-Check voltage to thermistor.
8 Times 4 Times Continuous 84 Current sensor error
Current Sensor Error – When input current sensor has detected 0A, while the inverter compressor is operating
at higher than 56rps, after 1 minute upon starting the compressor. (Except during defrost operation)
-Check if terminal connection is loose.
-Check if connector is removed.
-Check if erroneous connection.
8 Times 6 Times Continuous 86 High pressure switch error
High Pressure Switch Error – When the pressure switch is detected open for longer than 10 seconds after the
power is turned on.
-Reset power to disconnect for 3-5 minutes.
-Check voltage to pressure switch.
-Check ohm resistance to high pressure switch.
9 Times 4 Times Continuous 94 Over current error
Trip Detection – Protection stop by overcurrent generation after inverter compressor start processing completed
generated consecutively 10 times. The number of generations is reset if the compressor is able to start up.
-Clogged heat exchanger.
-Condenser fan motor defective.
-Discharged air not sucked in.
9 Times 5 Times Continuous 95 Compressor control error
Compressor Motor Control Error – If the detected rotor location is out of phase with actual rotor location more
than 90 degrees, the compressor stops. After the compressor restarts, if the same operation is repeated within
40 seconds, the compressor stops again.
-Check if connector is removed.
-Check erroneous connection.
-Check if cable is open.
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