Midea MRQ23B4AST Service Manual

Service Manual_2018-V1.0
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8.7 DISPLAY CONTROL BOARD ........................................................................................................................... 27
8.8 MAIN CONTROL BOARD ............................................................................................................................... 28
8.9 BAR COUNTER ............................................................................................................................................ 30
8.10 WATER DISPENSER ................................................................................................................................... 30
8.11ICE MAKER ................................................................................................................................................ 30
8.12WATER FILTER ........................................................................................................................................... 31
9. FUNCTION AND OPERATION ..................................................................................................................... 32
9.1 OPERATION PANEL ...................................................................................................................................... 32
9.2 DISPLAY ..................................................................................................................................................... 32
9.3 TEMPERATURE SETTING .............................................................................................................................. 32
9.4 MODE SETTING ........................................................................................................................................... 33
9.4.1 SUPER FREEZE MODE .............................................................................................................................. 33
9.5 FAULT CODE AND SOLUTIONS ....................................................................................................................... 34
9.6 DEFROSTING FUNCTION .............................................................................................................................. 35
9.7 TEST MODE ................................................................................................................................................ 36
10. CIRCUIT DESCRIPTION ............................................................................................................................ 37
10.1 SENSOR RESISTANCE(R/T) ....................................................................................................................... 37
11. TROUBLESHOOTING METHOD ................................................................................................................ 38
11.1 NO COOLING(AIR COOLING-ELECTRONIC) .................................................................................................. 38
11.2 NO WORKING OF COMPRESSOR ................................................................................................................. 39
11.3 INSIDE FROSTING, NO DEFROSTING ............................................................................................................ 39
11.4 INSIDE FROSTING, NO DEFROSTING-MAINTENANCE GUIDELINES ................................................................... 40
11.5 LIGHT IS NOT ON ....................................................................................................................................... 41
11.6 AIR DUCT NOT OPERATED(ELECTRONICALLY) .............................................................................................. 41
11.7 FAN FAILURE ............................................................................................................................................. 42
11.8 DEFECTIVE DEFROST CIRCUIT .................................................................................................................... 42
11.9 NOISE ...................................................................................................................................................... 43
12. FIGURES AND DETAILS OF REPAIR PARTS (DOCUMENTS ARE PROVIDED IN THE TSP) .............. 44
13. APPENDIX................................................................................................................................................... 45
13.1 REFRIGERATOR MAINTENANCE TOOLING AND EQUIPMENT AND MATERIAL ...................................................... 45

Midea MRQ23B4AST Specifications

General

Brand	Midea
Model	MRQ23B4AST
Category	Refrigerator
Language	English