Midea HS-507FWEN - Page 4

Service Manual_2018-V2.0
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8.8 DISPLAY CONTROL BOARD ........................................................................................................................... 29
8.9 MAIN CONTROL BOARD ............................................................................................................................... 30
8.10WATER DISPENSER （NONE） .................................................................................................................. 30
8.11ICE MAKER (NONE) .................................................................................................................................... 31
8.12WATER FILTER COMPONENT (NONE) ............................................................................................................ 31
9. TEMPERATURE SENSING SYSTEM .......................................................................................................... 32
9.1POSITION OF SENSORS ................................................................................................................................ 32
9.3 REPLACEMENT OF SENSORS ....................................................................................................................... 32
9.4 SENSOR REPLACEMENT .............................................................................................................................. 33
9.5 SENSOR RESISTANCE(R/T) ......................................................................................................................... 34
10. FUNCTION AND OPERATION ................................................................................................................... 36
10.1 OPERATION PANEL .................................................................................................................................... 36
10.2DISPLAY .................................................................................................................................................... 36
10.3 TEMPERATURE SETTING ............................................................................................................................ 37
10.4 FAULT ALARM DISPLAY AND PROCESSING .................................................................................................... 37
10.5 LED MODULE CONTROL ............................................................................................................................ 40
10.6 QUICK FREEZING MODE ............................................................................................................................. 40
10.7 DEFROSTING FUNCTION ............................................................................................................................ 41
10.8 MAINTENANCE MODE ................................................................................................................................ 41
10.9 FIRST POWER-ON AND MEMORY FUNCTION ................................................................................................. 42
11. COMPRESSOR AND FAN .......................................................................................................................... 43
11.1COMPRESSOR STARTUP AND SHUTDOWN CONTROL RULES ........................................................................... 43
11.2FAN OPENING AND CLOSING CONTROL ......................................................................................................... 43
12. TROUBLESHOOTING METHOD ............................................................................................................... 44
12.1NO COOLING (AIR COOLING-ELECTRONIC) .................................................................................................. 44
12.2 NO WORKING OF COMPRESSOR ................................................................................................................. 45
12.3 INSIDE FROSTING, NO DEFROSTING ............................................................................................................ 45
12.4 INSIDE FROSTING, NO DEFROSTING-MAINTENANCE GUIDELINES .................................................................. 46
12.5 LIGHT IS NOT ON ....................................................................................................................................... 47
12.6 FAN FAILURE ............................................................................................................................................ 47
12.7 DEFECTIVE DEFROST CIRCUIT ................................................................................................................... 48
12.8 NOISE ...................................................................................................................................................... 48
12.9 AIR DUCT NOT OPERATED(ELECTRONICALLY) (NONE) .................................................................................. 49
13. FIGURES AND DETAILS OF REPAIR PARTS .......................................................................................... 50