To Next PageTo Next PageWhat to do if the Mitsubishi Electric Air Conditioner trouble is reoccurring?
If the Mitsubishi Electric Air Conditioner trouble is reoccurring, judge the problem and take corrective action according to the "9-3. SELF-DIAGNOSIS ACTION TABLE". Also, conduct troubleshooting and ascertain the cause of the trouble according to "9-4. TROUBLESHOOTING OF PROBLEMS".
What to do if the Mitsubishi Electric PKA-A12LA trouble is not reoccurring and is logged?
If the Mitsubishi Electric Air Conditioner trouble is not reoccurring and is logged, re-check the symptom, and check the installation environment, refrigerant amount, weather when the trouble occurred, and matters related to wiring. Consider temporary defects such as the work of protection devices in the refrigerant circuit including compressor, poor connection of wiring, or noise. After finishing service, reset check code logs and restart the unit. This indicates there is no abnormality in the electrical component, controller board, or remote controller.
What to do if the Mitsubishi Electric PKA-A12LA trouble is not reoccurring and is not logged?
If the Mitsubishi Electric Air Conditioner trouble is not reoccurring and is not logged, re-check the abnormal symptom. Conduct troubleshooting and ascertain the cause of the trouble according to "9-4. TROUBLESHOOTING OF PROBLEMS". Continue to operate the unit for the time being if the cause is not ascertained. This indicates that there is no abnormality concerning parts such as the electrical component, controller board, or remote controller.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | PKA-A12LA |
| Category | Air Conditioner |
| Language | English |
Information regarding service manuals for outdoor units.
General safety rule before accessing terminals.
Precautions for units using R410A refrigerant.
Steps and tools needed before starting repair work.
Guidelines for using and handling refrigerant pipes.
Proper oil types and contamination avoidance for refrigerant systems.
Safe practices for handling and storing refrigerants and components.
Tools for R410A and general safety during service.
Important warnings and guidelines for performing service operations.
Specific cautions to follow during service operations.
Instructions for charging refrigerant directly from a cylinder.
Labels and identification of parts on the indoor unit.
List and specifications of essential tools for R410A refrigerant service.
Technical specifications for the PKA-A12LA.TH indoor unit.
Technical specifications for the PKA-A18LA.TH indoor unit.
Graphical representation of noise levels across different frequencies.
Detailed dimensions and required installation space for the indoor unit.
Schematic representation of electrical connections and symbols.
Diagram illustrating refrigerant flow and key components in the system.
Summary of troubleshooting steps based on self-diagnosis.
Methods for diagnosing malfunctions using the remote controller.
Table listing error codes and symptoms for indoor unit malfunctions.
Table listing error codes and symptoms for outdoor unit malfunctions.
Detailed troubleshooting steps for specific error codes.
Diagnosis and countermeasures for room temperature sensor errors.
Diagnosis and countermeasures for pipe temperature sensor errors.
Troubleshooting drain float switch and overflow protection issues.
Causes and solutions for freezing or overheating protection activation.
Troubleshooting abnormal pipe temperature readings.
Diagnosis for condenser/evaporator thermistor errors.
Actions for refrigerant circuit abnormalities and 4-way valve issues.
Troubleshooting remote controller signal transmission errors.
Diagnosing remote controller signal loss or transmission issues.
Troubleshooting communication errors between units.
Resolving signal reception errors between indoor and outdoor units.
Actions for indoor controller board data read errors.
Troubleshooting remote controller board malfunctions.
Procedures for compressor stops due to water leakage detection.
Diagnosing and resolving indoor fan motor issues.
Troubleshooting based on LED indicators on the indoor controller board.
Troubleshooting vane operation and wireless receiver problems.
How to activate and use emergency operation modes.
Procedures for checking thermistor and vane motor resistance values.
Step-by-step guide to diagnose DC fan motor issues.
Diagram showing test points on the indoor controller board.
Configuration settings using DIP switches and jumper wires.
Setting unit functions like filter sign and fan speed using the remote.
Alternating operation of main and sub units for rotation and backup.
How the second unit activates for higher cooling demand.
How to configure rotation and back-up functions via remote controller.
Configuring the 2nd stage cut-in function with request codes.
Step-by-step guide to remove the front panel and corner box.
Procedure for safely removing the electrical box.
Steps to remove internal circuit boards.
Procedure for removing the nozzle assembly and drain hose.
Guide to detach and remove the vane motor.
Steps to remove the fan motor and line flow fan.
How to remove pipe and condenser/evaporator thermistors.
Procedure for removing the heat exchanger assembly.
Steps to disconnect and remove the room temperature thermistor.
Explanation of basic remote controller buttons and their functions.
Explanation of Full and Basic display modes and icons.
Navigation flow for the remote controller's menu system.
Overview of options available within the service menu.
Detailed settings for operation, timer, and energy saving modes.
Settings for basic configuration, clock, and administrator password.
Configuration of display, auto mode, and setback mode.
Functions for error checking, test runs, and maintenance information.
Explanation of buttons and display for PAR-FL32MA remote.
Overview of buttons and display elements for PAR-SL100A-E remote.
How to display and clear error information on the remote controller.
Accessing error information through the maintenance menu.
Steps to enter the service menu using a password.
Performing cooling, heating, and vane checks with PAR-40MAA.
Steps for performing test runs on PAR-FL32MA.
How to initiate test runs using the PAR-SL100A-E remote.
Setting various functions for indoor units using PAR-40MAA.
Selecting functions using the wireless remote controller for PAR-FL32MA.
Step-by-step guide for function selection on PAR-SL100A-E.
How to access and clear past error records.
Performing self-diagnosis and resetting errors with PAR-40MAA.
Methods for diagnosing malfunctions on PAR-FL32MA.
Steps for performing self-checks on PAR-SL100A-E.
Procedure to check the remote controller's functionality.
Steps to set up and run smooth maintenance operations.
How to retrieve operation data and error history using request codes.
