Contents
2007
Table of Contents
Introduction
Typical Unit Components
Room AIR Conditioners Limited Warranty
Routine Maintenance
08 L 1
Unit Identification
Performancedata
Electrical Data
Receptacle
Functional Component Definitions
Electronic Controls
Testing the Electronic Control XQ/WS Boards & QME Boards
Testing the Electronic Control Error Code Listings
Refrigeration System Sequence of Operation
Sealed Refrigeration System Repairs
Hermetic Component Replacement
Specialprocedureinthecaseofcompressor Motor Burnout
Rotarycompressorspecialtroubleshooting and Service
Equipment Required
Refrigerant Charging
Method of Charging
Undercharged Refrigerant Systems
Overcharged Refrigerant Systems
Restricted Refrigerant System
Normal Function of Valve
Malfunction of Valve
Cooling only Room AIR Conditioners Troubleshooting Tips
Problem Possible Cause Action
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
Troubleshooting Chart Cooling
Refrigerant System Diagnosis Heating
Troubleshooting Chart Heating
Electrical Troubleshooting Chart Heat Pump
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
