Samsung MWR-WH00 Installation Manual page 9

Error display priority
  P riority 1: Wired remote controller error > Indoor/Outdoor unit error
Priority 2: Displays master indoor unit error
(Master Indoor unit = Indoor unit whose option switch K10 is set OFF)
Priority 3: Displays the error code of the indoor unit which has earlier Main(COM1) address
Priority 4: Displays the error code of the indoor unit which has earlier COM2 address
when Main(COM1) addresses is overlapped
Display
- Master error of several units.
- Error occurs when 2 wired remote controllers are set as Master and
installed in one communication cable.
If communication cable is connected to opposite polarity,
detection is impossible.
- Error is detected only in Master wired remote controller.
- Error of independent ERV installation.
- When ERV is installed without an indoor unit.
- Error is detected only in Master wired remote controller.
- Slave wired remote controller installation error.
- When 2 slave wired remote controllers are installed.
- When 1 wired remote controller and 2 slave ERV remote controllers
are installed together.
Communication Tracking Error.
- MaterSlave wired remote controller communication error.
- Error is detected only in Slave wired remote controller.
Wired remote controllerindoor unit/ERV communication error.
Temperature OPEN/SHORT error.
FRAM READ/WRITE error.
- Mixed installation of Celsius(°C)/Fahrenheit(°F) indoor unit error.
- Error occurs when indoor units with Celsius(°C)/Fahrenheit(°F)
settings are installed together.
- Error is detected only in Master wired remote controller.
- Celsius(°C)/Fahrenheit(°F) setting error of the wired remote
controller.
- Error occurs when the indoor unit is set as Celsius and the wired
remote controller is set as Fahrenheit or vise versa.
- Change the setting of DIP switch 4 when the 620 error occurs.
Refer to the installation manual of each device(Indoor/
Outdoor Unit) for error code references.
Explanation Remark
High Priority
Low Priority
9
E-