Service and Troubleshooting
ASXC, DSXC, and GSXC Condensing units,
ASZC, DSZC, and GSZC Split System Heat Pumps
with R-410A Refrigerant Blowers, Coils, & Accessories
RS6200007r25
April 2021
Pride and workmanship go into every product to provide
our customers with quality products. It is possible, however,
that during its lifetime a product may require service.
Products should be serviced only by a qualified service
technician who is familiar with the safety procedures
required in the repair and who is equipped with the proper
tools, parts, testing instruments and the appropriate service
manual.
REVIEW ALL SERVICE INFORMATION IN THE
APPROPRIATE SERVICE MANUAL BEFORE
BEGINNING REPAIRS.
Only personnel that have been trained to install, adjust,
service or repair (hereinafter, “service”) the equipment
specified in this manual should service the equipment.
The manufacturer will not be responsible for any injury
or property damage arising from improper service or
service procedures. If you service this unit, you assume
responsibility for any injury or property damage which
may result. In addition, in jurisdictions that require one
or more licenses to service the equipment specified in
this manual, only licensed personnel should service the
equipment.
Improper installation, adjustment, servicing or repair of
the equipment specified in this manual, or attempting to
install, adjust, service or repair the equipment specified in
this manual without proper training may result in product
damage, property damage, personal injury or death.
WARNING
©2020-2021 Goodman Manufacturing Company, L.P.
Brand
®
is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
TABLE OF CONTENTS
IMPORTANT INFORMATION ............................................ 2
PRODUCT INFORMATION ............................................... 4
SYSTEM OPERATION .................................................... 18
SERVICING ..................................................................... 26
CHECKING VOLTAGE ............................................... 26
CHECKING WIRING .................................................. 26
HANDLER (B*) ............................................................ 26
CONTROL CIRCUIT .................................................... 32
CHECKING TIME DELAY RELAY .............................. 32
COMPRESSOR ........................................................... 32
CHECKING HIGH AND LOW VOLTAGE TO
ECM MOTOR .............................................................. 33
COPELAND COMFORT ALERT™ - UNITARY (UC)
CONTROL DIAGNOSTICS APPLIES TO ASXC, ASZC,
AND DSZC 2-STAGE MODELS
................................ 34
CHECKING HIGH PRESSURE CONTROL ............... 34
CHECKING LOW PRESSURE CONTROL ................ 34
CHECKING HIGH AND LOW PRESSURE SWITCH
VOLTAGE .................................................................... 35
CHECKING CAPACITOR ............................................ 35
RESISTANCE CHECK USING A DIGITAL
MULTI-METER ............................................................ 35
CAPACITANCE CHECK USING A DIGITAL
MULTI-METER (IN CAPACITANCE MODE) ............... 35
TESTING A RUN CAPACITOR UNDER LOAD ........... 36
ECM MOTORS ............................................................ 36
CHECKING COMPRESSOR ....................................... 39
RESISTANCE TEST .................................................. 39
GROUND TEST .......................................................... 40
For service information related to the Bluetooth® Shared
Data Loader BTSDL01 referenced in this manual, please
refer to the installation instructions for the BTSDL01 at
www.coolcloudhvac.com/loaderuserguide.
Summary of Contents for ASXC16
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