Alignment And Adjustments; Error Mode And Check Method - Samsung MH020FPEA Service Manual

3. Alignment and Adjustments

3-1 Error mode and check method

3-1-1 Indoor Unit
I MH✳✳✳FPEA✳ /MH✳✳✳FWEA/MH✳✳VP2-✳✳ /MH✳✳VW2-✳✳
Display
Communication error (unable to receive data)
Communication error (outdoor cannot communicate)
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 heat exchanger in temperature sensor detached
Indoor unit heat exchanger out temperature sensor detached
Indoor unit heat exchanger in & out temperature sensor
detached
Indoor unit fan motor malfunction
More than 2 indoor units cool and heat simultaneously
EEPROM error
Option code setting error
Cable miss-wiring
The number of indoor unit mismatched
Compressor discharge sensor error(Short/Open)
Outdoor unit error
3-1
Explanation Main checking Point / Remark
Communication cable connection
Another indoor unit or indoor PCB
Room temperature sensor, indoor PCB
Heat exchanger in sensor, indoor PCB
Heat exchanger out sensor, indoor PCB
Heat exchanger in sensor
Heat exchanger out sensor
Heat exchanger in & out sensor
Fan motor and cable
Another indoor unit operation mode
Indoor PCB
Option code
Cable connection (Indoor & Outdoor unit)
Cable connection (another indoor unit &
outdoor unit), SW01(outdoor)
Outdoor unit
Outdoor unit (Error code)
Samsung Electronics