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Mitsubishi Electric MS-GD80VB-E1 - User Manual

Mitsubishi Electric MS-GD80VB-E1
26 pages
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CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 2
3. SPECIFICATION ················································ 3
4. NOISE CRITERIA CURVES ······························ 3
5. OUTLINES AND DIMENSIONS ························ 4
6. WIRING DIAGRAM ············································ 4
7. REFRIGERANT SYSTEM DIAGRAM ··············· 5
8. SERVICE FUNCTIONS ····································· 6
9. MICROPROCESSOR CONTROL ····················· 8
10. TROUBLESHOOTING ····································· 14
11. DISASSEMBLY INSTRUCTIONS ···················· 23
SPLIT-TYPE AIR CONDITIONERS
MS-GD80VB -
E1
SERVICE MANUAL
Wireless type
Model
INDOOR UNIT
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
Outdoor unit service manual
MU-GD•VB Series (OBH512)
No. OBH511
REVISED EDITION-A
PARTS CATALOG (OBB511)
Revision A:
Another type of the electronic control P.C.
board (TYPE 2) has been added to the
original one (TYPE 1). They are both com-
patible with MS-GD80VB-
E1
.
Please void OBH511.

Questions and Answers

  • A
    Andrew GreenAug 6, 2025
    What to do if my Mitsubishi Electric MS-GD80VB-E1 is flashing 4 times?
    • R
      Rachel JonesAug 6, 2025
      If your Mitsubishi Electric Air Conditioner is flashing 4 times, it indicates a problem with the indoor unit control system. The suggested solution is to replace the indoor electronic control P.C. board.
  • K
    Kaitlyn MyersAug 12, 2025
    What does it mean when my Mitsubishi Electric Air Conditioner flashes 7 times?
    • B
      Brian TrevinoAug 13, 2025
      If your Mitsubishi Electric Air Conditioner is flashing 7 times, this indicates a problem with the outdoor control system. The cause is a trouble of outdoor control system. Replace the deicer P.C. board to resolve the issue.
  • K
    Kenneth OnealAug 17, 2025
    What does a 2-time flash mean on my Mitsubishi Electric MS-GD80VB-E1?
    • T
      Taylor GarciaAug 18, 2025
      If your Mitsubishi Electric Air Conditioner is flashing 2 times, it indicates a trouble with the room temperature or indoor coil thermistor. Check the room temperature thermistor and the indoor coil thermistor. Refer to 10-6. "Test point diagram and voltage".
  • J
    jbowenAug 25, 2025
    What does 3 flashes mean on a Mitsubishi Electric Air Conditioner?
    • B
      Bill HallAug 25, 2025
      If your Mitsubishi Electric Air Conditioner is flashing 3 times, it indicates a problem with the indoor fan motor. For the suggested solution, refer to 10-5. "Check of indoor fan motor".
  • S
    srodriguezAug 30, 2025
    What does 10 flashes mean on a Mitsubishi Electric MS-GD80VB-E1 Air Conditioner?
    • E
      Eric MorganAug 30, 2025
      If your Mitsubishi Electric Air Conditioner is flashing 10 times, it indicates a problem with the outdoor low discharge temperature protection. For the suggested solution, refer to "Check of LEV".

Summary

Technical Changes Overview

New Model

Details the introduction of a new model.

Part Names and Functions Overview

Included Accessories

Lists and quantities of included accessories for the unit.

Unit Specifications

Noise Criteria Curves

Physical Dimensions and Outlines

Electrical Wiring Diagram

Refrigerant System Diagram

Service Functions and Modifications

Timer Short Mode for Service

Shortens timer settings for service purposes.

PC Board Modification for Multi-Unit Operation

Modifies PC boards for operating multiple units individually.

Microprocessor Control and Operations

Wireless Remote Controller Functions

Details the buttons and functions of the wireless remote controller.

Indoor Unit Indicator Lamp Meaning

Explains the meaning of the indoor unit's operation indicator lamp.

Standard Operation Modes

Details various operation modes like Cool, Dry, Fan, and I Feel Control.

Auto Vane Airflow Control

Controls the horizontal and vertical vanes for airflow direction.

Timer Setting and Management

Setting and cancelling ON/OFF timers for the unit.

Special Operations and Time Delays

Covers emergency operation, test runs, and time delay functions.

Troubleshooting Guide

Troubleshooting Safety Precautions

Safety and handling precautions before performing troubleshooting.

Troubleshooting Flowchart by Indicator

Step-by-step guide for diagnosing unit issues based on indicator lights.

Troubleshooting Symptom-Remedy Table

Table correlating symptoms, conditions, and remedies for troubleshooting.

Main Part Troubleshooting Criteria

Criteria for checking the condition of major internal components.

Component Checks, Wiring, and Test Points

Specific checks for remote controller, PC boards, mis-wiring, and test points.

Disassembly and Component Removal

Panel Removal Procedure

Steps to remove the front panel of the indoor unit.

PC Board Removal Procedures

Steps to remove the electronic control and receiver PC boards.

Electrical Box Removal

Instructions for removing the unit's electrical box.

Vane Motor Removal

Steps to safely remove the vane motor.

Fan and Motor Component Removal

Instructions for removing the line flow fan and indoor fan motor.

Mitsubishi Electric MS-GD80VB-E1 Specifications

General IconGeneral
TypeSplit System
Cooling Capacity8.0 kW
Heating Capacity9.0 kW
Power Supply220-240 V, 50 Hz
RefrigerantR410A
Outdoor Unit Noise Level55 dB(A)
Dimensions (Indoor Unit)325 x 1100 x 238 mm
Indoor Unit Noise Level49 dB(A)

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