Mitsubishi Electric PLA-M125EA2-ET.UK User Manual

SERVICE MANUAL
INDOOR UNIT
PARTS CATALOG (OCB783)
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
Model name
indication for
MAIN UNIT
Model name
indication for GRILLE
Indoor unit
[Model Name] [Service Ref.]
Grille model
[Model Name] [Service Ref.]
PLP-6EA
PLP-6EAE
PLP-6EAL
PLP-6EALE
PLP-6EAJ
PLP-6EAJE
PLP-6EALM2
PLP-6EALME2
PLP-6EAB
PLP-6EA PLP-6EAR1
PLP-6EAE PLP-6EAER1
PLP-6EAL PLP-6EALR1
PLP-6EALE PLP-6EALER1
PLP-6EAJ
PLP-6EAJE
PLP-6EALM2
PLP-6EALME2
PLP-6EAB
R32/R410A
No. OCH783
REVISED EDITION-B
July 2023
CONTENTS
1. REFERENCE MANUAL ·······················2
2. SAFETY PRECAUTION ·······················2
3. PARTS NAMES AND FUNCTIONS ········8
4. SPECIFICATIONS ······························ 9
5. NOISE CRITERION CURVES ············· 12
6. OUTLINES AND DIMENSIONS ··········· 14
7. WIRING DIAGRAM ··························· 15
8. REFRIGERANT SYSTEM DIAGRAM ··· 16
9. TROUBLESHOOTING ······················· 17
10. FUNCTION SETTING ························ 32
11. SPECIAL FUNCTION ························ 33
12. DISASSEMBLY PROCEDURE ············ 37
13. REMOTE CONTROLLER ··················· 44
PLA-M35EA2
PLA-M35EA2-ER
PLA-M35EA2-ET
PLA-M50EA2
PLA-M50EA2-ER
PLA-M50EA2-ET
PLA-M60EA2
PLA-M60EA2-ER
PLA-M60EA2-ET
PLA-M71EA2
PLA-M71EA2-ER
PLA-M71EA2-ET
PLA-M100EA2
PLA-M100EA2-ER
PLA-M100EA2-ET
PLA-M125EA2
PLA-M125EA2-ER
PLA-M125EA2-ET
PLA-M140EA2
PLA-M140EA2-ER
PLA-M140EA2-ET
PLA-M35EA2.UK
PLA-M35EA2-ER.UK
PLA-M35EA2-ET.UK
PLA-M50EA2.UK
PLA-M50EA2-ER.UK
PLA-M50EA2-ET.UK
PLA-M60EA2.UK
PLA-M60EA2-ER.UK
PLA-M60EA2-ET.UK
PLA-M71EA2.UK
PLA-M71EA2-ER.UK
PLA-M71EA2-ET.UK
PLA-M100EA2.UK
PLA-M100EA2-ER.UK
PLA-M100EA2-ET.UK
PLA-M125EA2.UK
PLA-M125EA2-ER.UK
PLA-M125EA2-ET.UK
PLA-M140EA2.UK
PLA-M140EA2-ER.UK
PLA-M140EA2-ET.UK
Revision:
• PLP-6EAB has been added in
REVISED EDITION-B.
OCH783A is void.

Mitsubishi Electric PLA-M125EA2-ET.UK Specifications

General

Type	Ceiling Cassette
Cooling Capacity	12.5 kW
Heating Capacity	14.0 kW
Power Supply	220-240V, 50Hz
Energy Efficiency Class (Cooling)	A++
Energy Efficiency Class (Heating)	A+
Refrigerant	R32
Energy Efficiency Ratio (Cooling)	3.5
Energy Efficiency Ratio (Heating)	3.8
Indoor Unit Dimensions (HxWxD)	258 x 840 x 840 mm
Series	PLA
Operating Temperature Range (Heating)	-15°C to 24°C

Summary

Safety and Handling Precautions

General Safety Guidelines

Refrigerant Safety Cautions

Specific warnings for R32/R410A refrigerant handling.

Service Operation Warnings

Critical warnings for personnel performing service.

R32 Refrigerant Unit Safety

Specific safety measures when working with R32 units.

Troubleshooting and Diagnostics

Troubleshooting Overview and Methods

General approach to diagnosing and resolving problems.

Self-Diagnosis and Error Code Reference

Detailed table of error codes, causes, and solutions.

Common Problem Resolution Guide

Component Testing and Diagnostics

Remote Controller Operations and Service Menu

Error Information and Service Menu Access

Checking errors and entering the advanced service menu.

Test Run and Function Configuration Procedures

Rotation Settings and Error History Management

Self-Diagnosis and Remote Controller Checks

Running system diagnostics and testing the remote controller.