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Pioneer WT009ALFI19HLD User Manual

Pioneer WT009ALFI19HLD
39 pages
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CS78421-548-754
DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP
IMPORTANT NOTICE:
Please read this manual carefully before installing
or operating your new air conditioning system.
Be sure to save this manual for future reference.
Service Manual
WYT Inverter Series
For
9,000-36,000 BTU/hr Systems

Table of Contents

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Pioneer WT009ALFI19HLD Specifications

General IconGeneral
BrandPioneer
ModelWT009ALFI19HLD
CategoryAir Conditioner
LanguageEnglish

Summary

Important Notice

Refrigeration cycle diagram

Operation Details

4.2.1 Safety Protection

Explains various safety protection mechanisms implemented in the electronic controller.

Defrosting

Details the conditions and process for the unit entering and exiting defrosting mode.

Error list

Failure Type

Lists various failure types with corresponding LED and Digital LED codes.

Wiring diagram

Precaution

7.1 SAFETY RULES AND RECOMMENDATIONS FOR THE INSTALLATION

Safety guidelines and recommendations for the proper installation of the air conditioner.

7.2 SAFETY RULES AND RECOMMENDATIONS FOR THE USER

Safety rules and recommendations for users regarding operation, cleaning, and maintenance.

7.3 SAFETY RULES AND PROHIBITIONS

Lists safety rules and prohibitions to prevent hazards during appliance use.

Installation manual

Trouble shooting

10.5 Examples of repairing

Guides on troubleshooting specific error codes and common repair procedures.

10.5.1 Display E1 or E2

Troubleshooting steps for error codes E1 and E2 related to sensor faults.

10.5.2 Display E6

Troubleshooting steps for error code E6 related to indoor motor faults.

10.5.3 Display E3, E7

Troubleshooting steps for error codes E3 and E7 related to outdoor sensor faults.

10.5.4 Display E8

Troubleshooting steps for error code E8 related to outdoor discharge pipe temp sensor.

10.5.5 Display E0,E5

Troubleshooting steps for error codes E0 and E5 related to indoor/outdoor communication damage.

10.5.6 Display EA

Troubleshooting steps for error code EA related to current sensor faults.

10.5.7 Display E9 (first display P0 or P9)

Troubleshooting steps for error codes E9, P0, P9 related to outdoor PCB drive circuit damage.

10.5.8 Display EU

Troubleshooting steps for error code EU related to voltage sensor damage.

10.5.9 Display EE

Troubleshooting steps for error code EE related to EEPROM fault.

10.6 MALFUNCTION (PARTS) CHECK METHOD

Methods for checking parts to determine malfunctions, particularly for outdoor unit IPM/compressor.

10.6.1 Procedure for determining defective outdoor unit IPM/compressor

Flowchart to diagnose malfunctions in outdoor unit IPM or compressor when it does not start.

10.6.2 DC Over Current Error

Flowchart for diagnosing DC over current errors, including IPM and compressor checks.

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