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Hitachi RAS-3.0PNNBDH1 User Manual

Hitachi RAS-3.0PNNBDH1
55 pages
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SERVICE MANUAL
PRIMAIRY
LARGE SINGLE SPLIT
DC-INVERTER SERIES
MODELS
MODELS
HS2021393HA
SM)-210131
INDOOR UNITS
OUTDOOR UNITS
DUCTED
RPIL-1.0PNN1DH
RPIL-1.5PNN1DH
RPIL-2.0PNN1DH
RPIM-3.0PNN1DH
RPIM-4.0PNN1DH
CASSETTE
RCIM-1.0PNN1DH
RCIM-1.5PNN1DH
RCI-2.0PNN1DH
RCI-3.0PNN1DH
RCI-4.0PNN1DH
RAS-1.0PNNBDH1
RAS-1.5PNNBDH1
RAS-2.0PNNBDH1
RAS-3.0PNNBDH1
RAS-4.0PNNBDH1

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Hitachi RAS-3.0PNNBDH1 Specifications

General IconGeneral
BrandHitachi
ModelRAS-3.0PNNBDH1
CategoryAir Conditioner
LanguageEnglish

Summary

HITACHI SERVICE MANUAL

1. OPTION LIST

2. TROUBLESHOOTING

Common Malfunctions and Fault Code Identification

Guide for common issues and how to check fault codes on the wired controller.

Troubleshooting Fault Codes via LEDs

Interpreting fault codes from LED indicators on display panels and outdoor units.

Outdoor Unit Fault Code Displays

Fault code displays for outdoor units and main control boards.

Drive Board Fault Code Indicators

Understanding fault codes indicated by drive board flashing lamps.

Outdoor Unit Fault Code Table

Table of outdoor unit fault codes, descriptions, and solutions.

Outdoor Unit Fault Analysis

Compressor, high pressure, low pressure, and overload faults.

Indoor Unit Fault Code Analysis

Indoor unit fault codes and issues with communication/fan motors.

Indoor Unit Faults and Overload Notes

Drainage, mode conflicts, cooling overload notes, and EEPROM faults.

Troubleshooting Notes and Communication Faults

Heating overload notes, communication faults, and other system issues.

Driving Board Fault Analysis (1.0-2.0HP)

Analysis of compressor, phase, IPM, and communication faults.

Driving Board Fault Analysis (1.0-2.0HP) (Continued)

Analysis of PFC, voltage, PWM logic, and other driver faults.

Driving Board Fault Analysis (3.0-4.0HP)

Analysis of faults for larger units including compressor, voltage, and PFC.

Driving Board Fault Analysis (3.0-4.0HP) (Continued)

Analysis of AC supply, PFC, and other driver board faults for larger units.

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