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Pioneer WYD-GLFI SERIES User Manual

Pioneer WYD-GLFI SERIES
40 pages
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Troubleshooting and Repair Guideline for
WD Indoor / YN Outdoor Units
Series DC Inverter Air Conditioner
WYD-GF16-S1-1714
SERVICE MANUAL
DC INVERTER
SPLIT WALL-MOUNTED
DUCTLESS HEAT PUMPS
WYD-GLFI SERIES
16 SEER VERSIONS

Table of Contents

Questions and Answers:

Pioneer WYD-GLFI SERIES Specifications

General IconGeneral
TypeSplit System
Cooling Capacity18000 BTU/h
Heating Capacity19000 BTU/h
HSPF Rating10.0
Power Supply1 Phase
Dimensions (Outdoor Unit)780 x 285 x 540 mm

Summary

SERVICE MANUAL

Electrical Control of Inverter Air Conditioner

Wiring Diagram of Inverter AC Unit

Illustrates the wiring diagram for the inverter AC unit, showing connections between components.

Computer Control Function Flow Charts

Protection and Fault Code Identification

Fault Code List

Lists various fault types, their function indicators (flash), and digital LED display codes.

Protection Code List

Details protection types, function indicators (flash), and digital LED display codes.

Troubleshooting

Troubleshooting by Fault Code

Provides a systematic approach to troubleshooting based on displayed fault codes.

Display E1/E2: Room/Pipe Sensor Fault

Details symptoms, causes, inspections, and solutions for E1 or E2 fault codes.

Display E6: Indoor Fan Motor Fault

Details symptoms, causes, inspections, and solutions for E6 fault code related to the indoor fan motor.

Display E3, E7, E8: Outdoor Sensor Faults

Details symptoms, causes, inspections, and solutions for E3, E7, E8 fault codes for outdoor sensors.

Display E4: System Abnormal

Details symptoms, causes, inspections, and solutions for E4 fault code, indicating system abnormality.

Display EC: Communication Fault

Details symptoms, causes, inspections, and solutions for EC fault code related to communication.

Display EP: Compressor Temp Switch Fault

Details symptoms, causes, inspections, and solutions for EP fault code related to compressor temperature switch.

Display EA: Current Sensor Fault

Details symptoms, causes, inspections, and solutions for EA fault code related to current sensor.

Other Non-Code Faults

Addresses faults not indicated by specific codes.

PCB Board Replacement Cautions

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