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Mitsubishi Electric MSZ-GL06NA-U1 - User Manual

Mitsubishi Electric MSZ-GL06NA-U1
52 pages
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SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES
· ·······························
2
2. PART NAMES AND FUNCTIONS ··················3
3. SPECIFICATION ········································6
4. OUTLINES AND DIMENSIONS ·····················8
5. WIRING DIAGRAM ··································· 10
6. REFRIGERANT SYSTEM DIAGRAM ···········12
7. SERVICE FUNCTIONS ······························ 13
8. MICROPROCESSOR CONTROL ················15
9. TROUBLESHOOTING ······························· 23
10. DISASSEMBLY INSTRUCTIONS ·················41
No. OBH732
REVISED EDITION-C
Outdoor unit service manual
MUZ-GL•NA, MUY-GL•NA Series (OBH733)
MXZ-C•NA, MXZ-C•NAHZ Series (OCH573)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
PARTS CATALOG (OBB732)
MSZ-GL06NA
-
U1
MSZ-GL09NA
-
U1
MSZ-GL12NA
-
U1
MSZ-GL15NA
-
U1
MSZ-GL18NA
-
U1
MSZ-GL24NA
-
U1
Models
MSZ-GL18NA
MSY-GL18NA
INDOOR UNIT
Revision C:
• For the airflow of MSZ-GL24NA-
U1
and MSY-
GL24NA-
U1
on the specification table has
been corrected (3. SPECIFICATION).
OBH732 REVISED EDITION-A is void.
MSY-GL09NA
-
U1
MSY-GL12NA
-
U1
MSY-GL15NA
-
U1
MSY-GL18NA
-
U1
MSY-GL24NA
-
U1

Questions and Answers

  • S
    sosaphilipAug 3, 2025
    What to do if my Mitsubishi Electric MSZ-GL06NA-U1 Air Conditioner indoor control system is not reading data?
    • D
      Dr. Renee ThomasAug 3, 2025
      If the Mitsubishi Electric Air Conditioner's indoor control system cannot properly read data in the nonvolatile memory of the indoor electronic control P.C. board, you should replace the indoor electronic control P.C. board.
  • C
    Christopher HutchinsonAug 17, 2025
    What to do if my Mitsubishi Electric MSZ-GL06NA-U1 Air Conditioner has other abnormality?
    • M
      mclaughlinrichardAug 17, 2025
      If your Mitsubishi Electric Air Conditioner shows other abnormality, check the stop valve, the 4-way valve and check the abnormality in detail using the failure mode recall function for outdoor unit.

Summary

Technical Changes

Part Names and Functions

Specification

Operating Range

Details operational voltage, temperature, and humidity limits for indoor units.

Outlet Air Speed and Coverage

Provides airflow, air speed, and coverage data for various indoor unit models.

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Service Functions

Timer Short Mode

Explains how to shorten timer settings for service purposes.

P.C. Board Modification for Individual Operation

Details modifications to the P.C. board for individual unit control.

Auto Restart Function

Describes the automatic restart feature and how to disable it.

Microprocessor Control

Wireless Remote Controller

Illustrates remote control buttons and functions for different model series.

Indoor Unit Display Section

Explains the meaning of the operation indicator lamp states.

Various Operation Modes

Covers COOL, DRY, HEAT, FAN, and I FEEL CONTROL operations.

Auto Change Over ・・・ Auto Mode Operation (MSZ)

Describes automatic switching between COOL and HEAT modes for MSZ models.

Auto Vane Operation

Explains the auto vane control for horizontal and vertical airflow adjustment.

Timer Operation

Guides on setting ON and OFF timers for unit operation.

Smart Set () Operation

Details how to set and cancel the SMART SET operation mode.

Emergency;Test Operation

Describes emergency and test run operations for servicing.

3-Minute Time Delay Operation

Explains the 3-minute time delay function for compressor protection.

Changing Temperature Indication (°F;°C)

Provides instructions on switching between Fahrenheit and Celsius temperature displays.

Troubleshooting

Cautions on Troubleshooting

Lists important precautions and checks before starting troubleshooting procedures.

Failure Mode Recall Function

Explains how to recall and check stored failure modes of the unit.

Instruction of Troubleshooting

Provides a flowchart for troubleshooting unit operation issues.

Troubleshooting Check Table

Lists common symptoms, conditions, and remedies for unit abnormalities.

Trouble Criterion of Main Parts

Details resistance criteria for checking key components like thermistors and motors.

Troubleshooting Flow

Step-by-step guide for diagnosing indoor fan motor issues.

Check of Remote Controller and Indoor Electronic Control P.C. Board

Troubleshooting guide for remote controller and P.C. board communication issues.

Check of Indoor P.C. Board and Indoor Fan Motor

Diagnostic steps for indoor P.C. board and fan motor problems.

How to Check Miswiring and Serial Signal Error

Procedure for identifying and correcting wiring and serial signal errors.

Electromagnetic Noise Enters into TV Sets or Radios

Test Point Diagram and Voltage

Disassembly Instructions

MSZ-GL06 NA MSZ-GL09 NA MSZ-GL12 NA MSZ-GL15 NA MSY-GL09 NA MSY-GL12 NA MSY-GL15 NA

Instructions for disassembling panels on specific indoor unit models.

MSZ-GL18 NA MSY-GL18 NA

Instructions for disassembling panels on specific indoor unit models.

MSZ-GL24 NA MSY-GL24 NA

Instructions for disassembling panels on specific indoor unit models.

Fixing the Indoor Coil Thermistor

Position and Procedure for Mounting the Clip-Shape Part

Step-by-step guide for correctly mounting the indoor coil thermistor.

Mitsubishi Electric MSZ-GL06NA-U1 Specifications

General IconGeneral
Cooling Capacity6, 000 BTU/h
Power Supply208-230V/1Ph/60Hz
RefrigerantR410A
Sound Level19 dB (Indoor), 49 dB (Outdoor)
EER (Energy Efficiency Ratio)12.1
HSPF (Heating Seasonal Performance Factor)10.3
Indoor Unit Dimensions (W x H x D)28-1/8 x 11-5/8 x 8-7/8 inches
Outdoor Unit Dimensions (W x H x D)30.0 x 21.5 x 11.8 inches
Indoor Unit Weight22 lbs
Outdoor Unit Weight65 lbs
Operating Temperature (Cooling)14° to 115°F (-10° to 46°C)
Operating Temperature (Heating)14°F to 75°F

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