Samsung MH18AP1-09 Installation Manual page 22

C I
OMPLETING THE NSTALLATION
Checking and Testing Operations (Cont.)
The error indicated on the display panel of indoor unit
DISPLAY
ALL LAMP
is flickering
22
E-
EXPLANATION
Indoor unit room temperature sensor error
IN sensor of indoor unit heat exchanger error
Indoor unit fan motor
Indoor unit communication error
Indoor unit EEPROM error
Indoor unit EEPROM option error
outdoor unit B, C cools and heats
simultaneously
outdoor unit pipe is wrong connected
outdoor unit sensor error(short/open)
outdoor unit sensor error(short/open)
outdoor unit sensor error(short/open)
Error in setting indoor unit's address & outdoor
unit communication error
REMARK
When inputting MICOM over 4.9V and below
0.4V
15 seconds after the fan operating below
450RPM
Wrong data for 60 seconds
Cool and heat mode is operating
simultaneously.
The pipes or the cables are wrong connected.
Check the temperature sensor of B
condenser pipe.
Check the temperature sensor of A
condenser pipe.
Check the outdoor temperature sensor.