Samsung mini DVM Series Service Manual page 420

Troubleshooting
3. DVM PLUS2 Series
Error No.(Ordered by priority) Error Meaning
Outdoor temperature sensor (Short or Open)
Digital comp.1 discharge temperature sensor (Short or Open)
Fixed comp.1 discharge temperature sensor (Short or Open)
Fixed comp.2 discharge temperature sensor (Short or Open)
Fixed comp.3 discharge temperature sensor (Short or Open)
High pressure sensor (Short or Open)
Low pressure sensor (Short or Open)
Comp.1 Sump temperature sensor (Short or Open)
COND OUT sensor (Short or Open)
Oil balance sensor1 (Short or Open)
Suction sensor (Short or Open)
Double pipe sensor (Short or Open)
Reverse phase or missing phase
Instant power off error
Forbid heat mode operation when outdoor temperature is over 30°C
Forbid an operation during heat mode with refrigerant charging operation when outdoor
temperature is over 15°C
Forbid an operation by low pressure
Equal oil valve 1 self diagnosis
Communication error between indoor and outdoor unit
(When not received in every room after completing the tracking)
Communication error between the indoor unit and outdoor unit.
(Pre tracking failure or different unit number between set units and indoor units.)
Communication error between main of outdoor unit and sub MICOM or between units
Comp. down by high pressure
Comp. down by low pressure
Comp. down by the freezing protection control
Comp. down by the sump protection control
Loading failure
Comp. down by the discharge temperature sensor
COND OUT sensor breakaway
Suction temperature sensor breakaway
Samsung Electronics 12-9