Toshiba RAS-18UKHP-E2 User Manual

FILE NO. SVM-03010(1)
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
Revised on Aug., 2003
RAS-24UKHP-E-1 / RAS-24UAH-E-1
RAS-18UKHP-E2 / RAS-18UAH-E2
RAS-24UKP-E-1 / RAS-24UA-E-1
RAS-24UKPX-1 / RAS-24UAX-1
RAS-24UKP-AR-1 / RAS-24UA-AR-1
RAS-24UKPX-T-1 / RAS-24UAX-T-1
RAS-18UKP-E2 / RAS-18UA-E2
RAS-18UKPX2 / RAS-18UAX2
RAS-18UKP-AR2 / RAS-18UA-AR2
RAS-18UKPX2-T2 / RAS-18UAX2-T2
18 Class
(Heat pump model)
24 Class18 Class
(Cooling only model)

Toshiba RAS-18UKHP-E2 Specifications

General

Brand	Toshiba
Model	RAS-18UKHP-E2
Category	Air Conditioner
Language	English

Summary

TOSHIBA Service Manual Air Conditioner

1. Specifications

4. Specification of Electrical Parts

4-1. Indoor Unit Electrical Parts

4-2. Outdoor Unit Electrical Parts

4-3. Outdoor Unit Electrical Parts

4-4. Indoor Unit Electrical Parts

4-5. Outdoor Unit Electrical Parts

4-6. Outdoor Unit Electrical Parts

4-7. Outdoor Unit Electrical Parts

4-8. Outdoor Unit Electrical Parts

4-9. Outdoor Unit Electrical Parts

4-10. Outdoor Unit Electrical Parts

7. Operation Description

7-1. Outline of Air Conditioner Control

Explains how the air conditioner is controlled by indoor and outdoor units.

7-2. Description of Operation Circuit

Explains unit behavior upon power-on and button presses.

7-3. Hi POWER Mode

7-4. High-Temperature Limit Control

7-5. Low-Temperature Limit Control

7-6. Defrost Operation

7-7. Auto Restart Function

Describes the automatic restart feature after power failure.

7-8. Filter Check Lamp

8. Installation Procedure

8-1. Safety Cautions

Important safety precautions for installation and unit handling.

8-2. Installation Diagram of Indoor and Outdoor Units

Visual guide detailing the placement and connection of indoor and outdoor units.

8-3. Installation Components and Parts

8-4. Indoor Unit Installation

Comprehensive guide for installing the indoor unit.

8-5. Outdoor Unit Installation

Comprehensive guide for installing the outdoor unit.

8-6. Remote Control Selector Switch Setup

9. Troubleshooting Chart

9-1. Troubleshooting Procedure

General approach to diagnosing and resolving operational issues.

9-2. Basic Check Items

Initial checks for common operational problems like power and wiring.

9-3. Primary Judgement

Basic diagnosis based on lamp indicators and observed symptoms.

9-4. Remote Control Self-Diagnosis

Using the remote control for self-diagnosis and interpreting check codes.

9-5. Faulty Parts Diagnosis Flowcharts

Flowcharts for diagnosing specific faulty components like sensors and boards.

9-6. Indoor Unit Troubleshooting

Specific troubleshooting steps for indoor unit operational issues.

9-7. Wiring Troubleshooting

Troubleshooting issues related to interconnect and signal wiring.

9-8. PC Board Troubleshooting

Procedures for checking and troubleshooting PC board failures.

9-9. Remote Control Troubleshooting

Steps for diagnosing and resolving remote control communication issues.

10. Part Replacement

10-1. Indoor Unit Part Replacement

Procedures for disassembling and replacing indoor unit components.

10-2. Outdoor Unit Part Replacement (Specific Models)

Procedures for replacing parts in specific outdoor unit models.

10-3. Outdoor Unit Part Replacement (RAS-18UAH-E2)

Procedures for replacing parts in the RAS-18UAH-E2 outdoor unit.

10-4. Outdoor Unit Part Replacement (Specific Models)

Procedures for replacing parts in specific outdoor unit models.

11. Exploded Views and Parts List

11-1. Indoor Unit E-Parts Assy Exploded View

11-2. Indoor Unit Exploded View and Parts List

11-3. Outdoor Unit (RAS-24UAH-E-1) Exploded View

11-4. Outdoor Unit (RAS-18UAH-E2) Exploded View

11-5. Outdoor Unit Exploded View (Multiple Models)

11-6. Outdoor Unit (RAS-18UA-E2) Exploded View

11-7. Outdoor Unit (RAS-18UAX2) Exploded View

11-8. Outdoor Unit (RAS-18UA-AR2) Exploded View