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Haier AB09SC2VHA User Manual

Haier AB09SC2VHA
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TROUBLESHOOTING & REFERENCES
J-16
ENGLISH
Outdoor Unit Error Codes
Error Code 10
This code indicates an electrical failure of the sensor that is
used to sense the temperature of the outdoor coil during
defrost. This sensor is connected to the PCB via a connection
at Plug CN-14.
Error Code 11
This code indicates an electrical failure of the sensor that is
used to sense the temperature of the suction gas that enters
the compressor. The sensor is connected to the PCB via two
wires at Plug CN-14.
Error Code 12
This code indicates an electrical failure of the sensor that is
used to sense the temperature of the outdoor air. The sensor
is connected to the PCB via two wires at Plug CN-14.
Error Code 13
This code indicates an electrical failure of the sensor that is
used to sense the temperature of the compressor hot gas
discharge line. The sensor is connected to the PCB via two
wires at Plug CN-14.
Temperature Sensor Error Codes
The easiest problems to solve will involve codes that are related to potential failure of temperature sensors. Common problems
may include loose connections, open or shorted, and out of calibration. Checking the condition of the sensors requires a
temperature probe and an ohmmeter.
The Reference Section of this manual contains temperature resistance tables that can be used to check the calibration of the
sensors. The measured resistance must be within the tolerances located in the tables.
There are 16 potential Error Codes that can be generated by the PCB to indicate a failure of an outdoor unit temperature sensor.
When the system generates an error code, it will be displayed on the Service Monitor Board, the number of ashes on the PCB,
and also on the indoor unit display panel.
Error Code 28-36
These codes indicate a failure of either a Liquid or Gas
Temperature Sensor that is part of either the A, B, C, or
D indoor unit EEV circuit. Refer to the outdoor unit Error
Code Decal for specic identication of the malfunctioning
temperature sensor. These sensors connect to the PCB at
connection plugs near the center of the circuit board. (Note
that if the sensor has failed, and there is an unused port on
the unit available, the sensor from the unused port can be
used to temporarily x the problem.)
Error Code 38
This code indicates a potential failure of the IPM temperature
sensor. This sensor connects to the IPM via Plug CN-8. This
sensor is mounted near the heat sink.
Error Code 39
This code indicates an electrical failure of the sensor that is
used to sense the condensing temperature of the outdoor
coil. The sensor is connected to the PCB via two wires at Plug
CN-14.
Error Code 41
This code indicates an electrical failure of the 'Toci' sensor,
which ensures there is no drop in hot gas temperature
through the 4-way valve. The sensor is connected to the PCB
via two wires at Plug CN-7.

Table of Contents

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Haier AB09SC2VHA Specifications

General IconGeneral
BrandHaier
ModelAB09SC2VHA
CategoryHeat Pump
LanguageEnglish

Summary

Introduction

Safety & Precautions

Details safety warnings and precautions for installation and operation.

Specifications

Provides technical data and ratings for various outdoor and indoor units.

Functions and Control

Explains various operational modes, controls, and system logic.

Outdoor Technical Overview

Components

Describes the various parts and boards within the outdoor unit.

Operations

Details the sequences and logic for cooling and heating modes.

Testing

Provides procedures for checking outdoor unit components like motors and sensors.

Wiring Diagrams

Illustrates the electrical connections for the outdoor unit.

DIP Switch Settings

Explains the configuration options for the outdoor unit's DIP switches.

Error Codes

Lists and explains diagnostic error codes for the outdoor unit.

Wall Mount Technical Overview

Components

Identifies and describes the parts within the indoor wall mount unit.

Testing

Outlines procedures for testing and troubleshooting indoor unit components.

Wiring Diagram

Shows the electrical wiring for the wall mount indoor unit.

Error Codes

Lists indoor unit error codes and their corresponding outdoor unit codes.

Compact Cassette Technical Overview

Components

Details the parts of the compact cassette indoor unit.

Testing

Provides testing procedures for cassette unit components like motors and sensors.

Wiring Diagram & DIP Switch Settings

Shows wiring and DIP switch configurations for cassette units.

Error Codes

Lists error codes for compact cassette indoor units.

Large Cassette Technical Overview

Components

Describes the components of the large cassette indoor unit.

Testing

Outlines testing procedures for large cassette indoor unit parts.

Wiring Diagram

Shows the wiring diagram for the large cassette unit.

Error Codes

Lists error codes specific to large cassette indoor units.

Slim Duct Technical Overview

Components

Details the parts of the slim duct indoor unit.

Ductwork/Grilles

Explains typical duct configurations and installation methods.

Testing

Provides testing procedures for slim duct unit components.

Wiring Diagram & DIP Switch Settings

Shows wiring diagrams and DIP switch settings for slim duct units.

Error Codes

Lists error codes for slim duct indoor units.

Mid-Static Ducted Technical Overview

Components

Describes the parts of the mid-static ducted indoor unit.

Indoor Unit Circuit Board

Details the indoor unit's circuit board and its connections.

Ductwork/Grilles

Explains duct configurations and installation for mid-static ducted units.

Testing

Outlines testing procedures for mid-static ducted unit components.

Wiring Diagram

Shows the wiring diagram for mid-static ducted units.

DIP Switch Settings

Explains DIP switch settings for mid-static ducted units.

Error Codes

Lists error codes for mid-static ducted indoor units.

Medium Static Ducted (Pro Series) Technical Overview

Components

Details the parts of the medium static ducted (Pro Series) unit.

Indoor Unit Circuit Board

Describes the medium static ducted unit's circuit board and connections.

Ductwork/Grilles

Explains duct configurations and installation for medium static ducted units.

Testing

Outlines testing procedures for medium static ducted unit components.

Wiring Diagram

Shows the wiring diagram for medium static ducted units.

DIP Switch Settings

Explains DIP switch settings for medium static ducted units.

Error Codes

Lists error codes for medium static ducted (Pro Series) units.

Console Technical Overview

Components

Identifies and describes the parts of the indoor console unit.

Indoor Circuit Board

Details the console unit's circuit board and its connections.

Testing

Provides testing procedures for console unit components.

Wiring Diagram/DIP Switch Settings

Shows wiring diagrams and DIP switch settings for console units.

Error Codes

Lists error codes for console indoor units.

Troubleshooting & References

Special Functions

Explains special operational features like Auto Restart and Forced Defrost.

Unit Configuration

Details how to adjust temperature compensation offsets for indoor units.

Unit Matching Tables

Provides tables for matching outdoor units with compatible indoor units.

Sensor Data

Lists sensor definitions and resistance values at different temperatures.

Component Ratings

Provides ratings for components like 4-Way Valve and Fan Motors.

Refrigeration Diagrams

Illustrates the refrigerant flow for different outdoor unit models.

Master Error Code Chart

A comprehensive chart correlating various error codes across different unit types.

Outdoor Unit Error Codes

Explains specific error codes related to outdoor unit components and circuits.

Flow Charts

Provides flowcharts for diagnosing various error codes and malfunctions.

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