Troubleshooting - Samsung MH18VP2X Installation Manual

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OMPLETING THE NSTALLATION

Troubleshooting

The error indicated on the PCB display of outdoor unit
DISPLAY EXPLANATION REMARK
Communication error (indoor unable to receive data)
Outdoor unit communication error
(Abnormal data from indoor unit over 60 packet)
Indoor unit room temperature sensor error (Open/Short)
Indoor unit heat exchanger in temperature sensor error (Open/Short)
Indoor unit heat exchanger out temperature sensor error (Open/Short)
Indoor unit sensor error-Evaporator pipe in sensor
Indoor unit sensor error-Evaporator pipe out sensor
Indoor unit sensor error-Evaporator pipe in and out sensor all
More than two indoor units cool and heat simultaneously
The number of Indoor unit mismatched
Communication error between the outdoor and indoor unit
Outdoor communication error between main PCB and sub PCB
Outside temperature sensor error (Short/Open)
- Error level: over 4.9V(-50°C) under 0.4V(93°C)
Condenser temperature sensor error(Short/Open)
- Error level: over 4.9V(-50°C) under 0.4V(93°C)
Outdoor unit sensor error - Condenser out sensor (Short/Open)
Compressor discharge sensor error (Short/Open)
- Error condition : outdoor temperature under -10°C
- Error level : over 4.95V(-30°C) under 0.5V(151°C)
Compressor discharge sensor detached
Compressor OLP sensor error (Short/Open)
- Error condition : outdoor temperature under -20°C
- Error level : over 4.95V(-30°C) under 0.5V(151°C)
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