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Haier 2U18MS2VHB Service Manual page 47

Ductless multi-split heat pump, outdoor/indoor, wall mount - highwall, 2'x2' compact cassette, 3'x3' large cassette, slim duct, mid-static ducted, medium static ducted, console
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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
COMPACT CASSETTE TECHNICAL OVERVIEW
Table of Contents
COMPACT CASSETTE TECHNICAL OVERVIEW
AB09SC2VHA
AB12SC2VHA
AB18SC2VHA
D-1

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