Samsung AM048FNHDCH/AA - Page 345

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PCB Diagram and Parts List

Samsung Electronics 5-15

Duct type (BIG Duct) (cont.)

EMI PCB

5 4

Main Page

Table of Contents2
Precautions5
Precautions for the Service5
Precautions for the Static Electricity and PL5
Precautions for the Safety5
Precautions for Handling Refrigerant for Air Conditioner6
Precautions for Welding the Air Conditioner Pipe6
Precautions for Additional Supplement of Air Conditioner Refrigerant6
Other Precautions6
Product Specifications7
Product Specifacations7
Indoor Unit7
Accessory and Option Specifications59
Accessories59
Disassembly and Reassembly61
Indoor Unit62
Troubleshooting201
Check-Up Window Description201
Service Operation202
Special Operation202
Troubleshooting207
Setting Option Setup Method207
Option Items222
What to Check before Diagnosis229
Number Display Method (Outdoor Unit, MCU, Cable Remote Control, Wall-Mount, Etc.)240
Appropriate Measures for Different Symptom245
Outdoor Unit Operation Flow245
Main PCB Has no Power Phenomenon246
Indoor Unit ROOM Sensor Error (Open/Short)247
Indoor Unit EVAP in Sensor Error (Open/Short)248
Indoor EVAP out Sensor Error (Open/Short)249
Indoor Heat Exchanger's EVAP in Sensor Dislocation Error250
Indoor Heat Exchanger's EVA out Sensor Dislocation Error (Open/Short)251
Simultaneous Indoor Heat Exchanger's EVA IN, out Sensor Dislocation Error (Open/Short)252
Electronic Expansion Valve Opening Malfunction (2Nd Stage)253
Breakdown of EEV (2 Nd )254
Problem with EEV Closure255
Detection of Floating Switch of Indoor Unit's Drain Pump256
The Operational Error of Indoor Unit's Fan Motor257
Mixed Operation Error (Only Applicable to Heat Pump Model/Not to HR Model)258
EEPROM Error259
Option Error of the Remote Controller for an Indoor Unit260
Error Due to Confused Use of Fahrenheit and Celsius260
Simultaneous Opening of Cooling/Heating MCU SOL Valves 1 St /2 Nd261
Error Due to Incorrect Indoor Unit Power/Communication Cable Connection262
SPI Feedback Error263
Outdoor Unit Pipe Inspection Error264
Communication Error between Indoor and Outdoor Units During Tracking265
Communication Error between Indoor and Outdoor Units after Tracking266
Communication Error between Main and Sub Unit of Outdoor Unit or between Outdoor Units267
Communication Error between MCU and Outdoor Unit268
Internal Communication Error of the Outdoor Unit C-Box269
Internal PCB Communication Error of the Outdoor Unit C-Box270
Communication Error between MCU and Outdoor Unit after Tracking Is Completed271
MCU Branch Part Setup Error - Inconsecutive Connection with the Use of 2 Branch Parts272
MCU Branch Part Setup Error - Repeated Setup for the same Address over 3 Times273
MCU Branch Part Setup Error - Non-Installed Address Setup274
Setup Error for MCU Branch Part - Setup Error for MCU Quantity Used275
MCU Branch Part Setup Error - Overlapping Indoor Unit Address Setup276
MCU Branch Part Setup Error - Set as Being Used Without Connection to an Indoor Unit277

Samsung AM048FNHDCH/AA - Page 345

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