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Mitsubishi Electric MSZ-FS06NA-U1 User Manual

Mitsubishi Electric MSZ-FS06NA-U1
38 pages
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INDOOR UNIT
SERVICE MANUAL
INDOOR UNIT
Models
MSZ-FS06NA
-
U1
MSZ-FS09NA
-
U1
MSZ-FS12NA
-
U1
MSZ-FS15NA
-
U1
MSZ-FS18NA
-
U1
No. OBH872
PARTS CATALOG (OBB872)
Outdoor unit service manual
MUZ-FS∙NA(H) Series (OBH873)
MXZ-C∙NA,NAHZ Series (OBH702)
CONTENTS
1. TECHNICAL CHANGES ······························3
2. PART NAMES AND FUNCTIONS ··················4
3. SPECIFICATION ·········································5
4. OUTLINES AND DIMENSIONS ·····················6
5. WIRING DIAGRAM ·····································7
6. REFRIGERANT SYSTEM DIAGRAM ·············8
7. SERVICE FUNCTIONS ································9
8. MICROPROCESSOR CONTROL ················· 11
9. TROUBLESHOOTING ······························· 20
10. DISASSEMBLY INSTRUCTIONS ·················33
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Mitsubishi Electric MSZ-FS06NA-U1 Specifications

General IconGeneral
Cooling Capacity6, 000 BTU/h
RefrigerantR32
Noise Level (Outdoor)46 dB(A)
Voltage (V)115
Operating Temperature (Cooling)14°F to 115°F
Product TypeAir Conditioner
Noise Level (Indoor)19 dB(A)
Power Supply115V/60Hz

Summary

3 SPECIFICATION

5 WIRING DIAGRAM

6 REFRIGERANT SYSTEM DIAGRAM

8 MICROPROCESSOR CONTROL

WIRELESS REMOTE CONTROLLER

Details the functions and buttons of the wireless remote controller for operation.

9 TROUBLESHOOTING

9-1. CAUTIONS ON TROUBLESHOOTING

Provides essential safety precautions and initial checks before troubleshooting.

9-2. FAILURE MODE RECALL FUNCTION

Explains how to recall and interpret stored error codes from the unit's memory.

9-3. INSTRUCTION OF TROUBLESHOOTING

Presents a flowchart for diagnosing issues based on unit operation status.

9-4. TROUBLESHOOTING CHECK TABLE

A table correlating indicator lamp patterns with specific faults and remedies.

9-5. TROUBLE CRITERION OF MAIN PARTS

Provides resistance values and checks for key internal components.

9-6. TROUBLESHOOTING FLOW

Detailed diagnostic procedures presented as flowcharts.

A Check of indoor fan motor

Detailed troubleshooting steps for issues related to the indoor fan motor.

B Check of remote controller and indoor electronic control P.C. board

Diagnostic steps for remote controller and PCB communication issues.

C Check of indoor P.C. board and indoor fan motor

Diagnostic steps for indoor PCB and fan motor circuit issues.

D How to check miswiring and serial signal error

Procedures to diagnose and resolve miswiring and serial signal communication errors.

9-7. TEST POINT DIAGRAM AND VOLTAGE

Provides diagrams and voltage specifications for testing circuit boards.

10 DISASSEMBLY INSTRUCTIONS

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