Haier USYM18UCDSA - Compact Cassette Technical Overview; Components

COMPACT CASSETTE TECHNICAL OVERVIEW
D-1
ENGLISH
COMPACT CASSETTE TECHNICAL OVERVIEW
Table of Contents
Components ......................................................................................................................................................................... D-2
Component Overview ......................................................................................................................................................... D-2
Cassette Unit Indoor Circuit Board .....................................................................................................................................D-4
Testing .................................................................................................................................................................................. D-5
Accessing the Blower Motor and Condensate Pump ........................................................................................................D-5
Removing Fan Motor ...........................................................................................................................................................D-5
Removing Condensate Pump .............................................................................................................................................D-5
Indoor Fan Motor Test Procedure .......................................................................................................................................D-6
Testing Temperature Sensors .............................................................................................................................................D-6
Testing Louver Motors ........................................................................................................................................................D-7
Testing Communication Circuit ..........................................................................................................................................D-7
Test Condensate Pump and Associated Float Switch .......................................................................................................D-8
Wiring Diagram & DIP Switch Settings ..................................................................................................................................D-9
Error Codes .........................................................................................................................................................................D-10
AB09SC2VHA
AB12SC2VHA
AB18SC2VHA