Mitsubishi MSZ-FA25VA User Manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································5
4. NOISE CRITERIA CURVES·······························6
5. OUTLINES AND DIMENSIONS ·························7
6. WIRING DIAGRAM ············································8
7. REFRIGERANT SYSTEM DIAGRAM················8
8. SERVICE FUNCTIONS ······································9
9. TROUBLESHOOTING······································11
10. DISASSEMBLY INSTRUCTIONS·····················31
11. PARTS LIST······················································35
12. OPTIONAL PARTS···········································38
Wireless type
Models
MSZ-FA25VA -
(WH)
MSZ-FA35VA -
(WH)
E1
E1
No. OB371
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Indication of model name
MSZ-FA25VA -
MSZ-FA35VA -
E1
E1
NOTE:
This service manual describes technical data of the indoor units.
•As for outdoor units MUZ-FA25VA- , MUZ-FA35VA- , MUZ-FA25VAH- and
MUZ-FA35VAH- , refer to service manual OB372.
•As for outdoor units MXZ-3A54VA- , MXZ-4A71VA- and MXZ-4A80VA- ,
refer to service manual OB377.
E1E1E1
E1
E1E1E1
OB371_--1qxp 05.1.17 12:50 Page 1

Mitsubishi MSZ-FA25VA Specifications

General

Brand	Mitsubishi
Model	MSZ-FA25VA
Category	Air Conditioner
Language	English

Summary

Unit Specifications and Features

Technical Changes

Lists modifications and improvements made to the unit.

Part Names and Functions

Identifies and describes the main parts of the indoor unit.

Specifications and Performance

Details technical data, performance metrics, and noise levels.

System Diagrams

Wiring Diagram

Illustrates the electrical connections within the indoor unit.

Refrigerant System Diagram

Shows the path of refrigerant and key components.

Service Functions and Troubleshooting

Service Functions

Overview of special operational modes and settings for service.

Troubleshooting Guide

General troubleshooting procedures, precautions, and failure mode recall.

Diagnostic Procedures

Tables, flowcharts, and criteria for diagnosing unit malfunctions.

Disassembly and Parts

Disassembly Instructions

Step-by-step guide to taking the unit apart.

Parts List

Identifies structural, electrical, and optional components with part numbers.