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Error code reference
Samsung Heat Pump Error Code E423
SUMP TEMP FIXED 3 sensor error OPEN/SHORT - detected when outdoor temperature is over -10°C; error level: over 4.95V (-30°C), below 0.5V (151°C).
SourceSamsung Heat Pump - Troubleshooting Guide: Outdoor Unit Error Codes (RMAH140GAM0SER)p. 220
Where this code is documented
7 manuals in the MyPros+ library document this code for Samsung heat pump.
Models covered by the manuals that document this code
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