Mitsubishi PEAD-A24AA4 - User Manual

SERVICE MANUAL
<indoor unit> Service ref.
Models
PEAD-A24AA4
PEAD-A30AA4
PEAD-A36AA4
PEAD-A42AA4
TM
1. SAFETY PRECAUTION ····························· 2
2. PART NAMES AND FUNCTIONS ·············· 3
3. SPECIFICATION ········································ 4
4. FAN PERFORMANCE AND
CORRECTED AIR FLOW ·························· 6
5. SOUND PRESSURE LEVELS ···················1 1
6. OUTLINES & DIMENSIONS ······················15
7. WIRING DIAGRAM ····································16
8. REFRIGERANT SYSTEM DIAGRAM ········17
9. HEATER CONTROL ··································17
10 . TROUBLESHOOTING ·······························20
11 . DISASSEMBLY PROCEDURE ··················33
CONTENTS
INDOOR UNIT
Series PEAD R410A
2010
SPLIT-TYPE, HEAT PUMP
AIR CONDITIONERS
NOTE:
• This manual describes only
service data of the indoor
units.

Mitsubishi PEAD-A24AA4 Specifications

General

Brand	Mitsubishi
Model	PEAD-A24AA4
Category	Air Conditioner
Language	English

Summary

Safety Precautions

Always Observe for Safety

General safety rule about disconnecting power before accessing terminals.

Cautions Related to New Refrigerant

Specific warnings and guidelines for handling R410A refrigerant.

Part Names and Functions

Indoor Unit Components

Identifies key components and airflow paths for the indoor unit.

Wiring Diagram

Wiring Diagram for PEAD Models

Troubleshooting

Cautions on Troubleshooting

Safety precautions to observe before and during troubleshooting procedures.

Self-Check Function

Explains the self-check function and error codes detected by the indoor unit.

Self-Diagnosis Action Table

Action table for self-diagnosis errors, detailing causes and countermeasures.

Troubleshooting by Inferior Phenomena

Addresses common issues like LED status and wiring problems.

Trouble Criterion for Main Parts

DC Fan Motor Troubleshooting

Specific procedure for diagnosing and resolving DC fan motor issues.

DIP Switch and Jumper Wire Functions

Disassembly Procedure

Control Box Removal

Intake Air Thermistor Removal

Drainpan Assembly Removal

Condenser;Evaporator Thermistor Removal

Fan and Fan Motor Removal

Heat Exchanger Removal