91
Samsung Electronics
Communication error (indoor unable to receive data)
Communication cable
connection
Communication error (outdoor unable to communicate)
Indoor unit
Indoor unit room temperature sensor error (Open/Short)
Indoor unit
Indoor unit heat exchanger in temperature sensor error (Open/Short)
Indoor unit
Indoor unit heat exchanger out temperature sensor error (Open/Short)
Indoor unit
Indoor unit sensor error - Evaporator pipe in sensor detached
Indoor unit
Indoor unit sensor error - Evaporator pipe out sensor detached
Indoor unit
Indoor unit heat exchanger in & out temperature sensor detached
Indoor unit
More than 2 indoor units cool and heat simultaneously
Indoor unit operation
mode
The number of indoor unit mismatched
Communication wiring
Communication error (outdoor unable to receive data)
Communication wiring
Communication error between two microcontroller on the outdoor PCB
Outdoor unit PCB
Outdoor temperature sensor error (Short/Open)
Temperature sensor
- Error level : over 4.9V(-50˚C) under 0.4V(93˚C)
Condenser temperature sensor error (Short/Open)
Temperature sensor
- Error level : over 4.9V(-50˚C) under 0.4V(93˚C)
Condenser temperature sensor detached
Temperature sensor
Compressor discharge sensor error (Short/Open)
- Error check condition : outdoor temperature over -20˚C
Temperature sensor
- Error level : over 4.95V(-30˚C) under 0.5V(151˚C)
Compressor discharge sensor detached
Temperature sensor
Compressor OLP sensor error (Short/Open)
- Error check condition : outdoor temperature over -20˚C
Temperature sensor
- Error level : over 4.95V(-30˚C) under 0.5V(151˚C)
Indoor unit heat exchanger freezing and compressor stop (cooling mode)
Check pipe matching
also(indoor-outdoor)
Outdoor unit overload and compressor stop (protection control in heating mode)
Check pipe matching
also(indoor-outdoor)
Outdoor unit high discharge temperature and compressor stop
Check pipe matching
(protection control in heating mode)
also(indoor-outdoor)
Main checking Point
Display
Explanation
The error indicated on the PCB display of outdoor unit
Troubleshooting
DB98_20402A(1)_2 10/26/04 3:27 PM Page 91
Содержание MH052FDEA
Страница 106: ...MEMO 105 Samsung Electronics ...
Страница 113: ...Samsung Electronics 112 Exploded Views and Parts List 1 2 8 9 10 11 3 6 7 4 5 ...
Страница 132: ...131 Samsung Electronics 11 PCB Diagram 11 1 MAIN PCB Indoor Unit TOP ...
Страница 133: ...Samsung Electronics 132 PCB Diagram BOTTOM ...
Страница 136: ...135 Samsung Electronics 11 2 MAIN PCB Outdoor Unit 11 2 1 MH068FXEA4 MH080FXEA4 TOP ...
Страница 137: ...Samsung Electronics 136 PCB Diagram BOTTOM ...
Страница 154: ...153 Samsung Electronics MH052FPEA Schematic Diagram This Document can not be used without Samsung s authorization ...
Страница 156: ...155 Samsung Electronics Schematic Diagram This Document can not be used without Samsung s authorization MH052FDEA ...