Contents
2007
Table of Contents
Typical Unit Components
Introduction
Room AIR Conditioners Limited Warranty
Routine Maintenance
Unit Identification
08 L 1
Performancedata
Receptacle
Electrical Data
Electronic Controls
Functional Component Definitions
Testing the Electronic Control Error Code Listings
Testing the Electronic Control XQ/WS Boards & QME Boards
Sealed Refrigeration System Repairs
Refrigeration System Sequence of Operation
Specialprocedureinthecaseofcompressor Motor Burnout
Hermetic Component Replacement
Rotarycompressorspecialtroubleshooting and Service
Equipment Required
Method of Charging
Refrigerant Charging
Overcharged Refrigerant Systems
Undercharged Refrigerant Systems
Restricted Refrigerant System
Malfunction of Valve
Normal Function of Valve
Problem Possible Cause Action
Cooling only Room AIR Conditioners Troubleshooting Tips
Replace fuse, reset breaker. If repeats, check
To equalize before attempting to restart. Instruct
Vents on applicable models are in the closed
Heat / Cool Room AIR Conditioners Troubleshooting Tips
Refrigerant System Diagnosis Heating
Troubleshooting Chart Cooling
Electrical Troubleshooting Chart Heat Pump
Troubleshooting Chart Heating
System Cools When Heating is Desired
YES
Models
RM18L30-A, KM18L30-A, KM21L30-A, RM24L30-A, KM24L30-A
SS16L30-A/B, SM18L30-A/B, SM21L30-A/B, SM24L30-A/B
Model
SL28L30-A
SL36L30-B
EQ08L11-A
ES12L33-A, ES16L33-A, EM18L34-A, EM24L35-A
EL36L35-A
YS09L10-A, YS09L10-B
YS13L33-A, YM18L34-A
YL24L35-A
RAC-Svc-07
Cooler
Warmer