Maytag Amana PMC Series, Service And Troubleshooting

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Service and Troubleshooting
Package Terminal Air Conditioner/HeatPump
Standard and Remote Applications with LED M70 Controlboard
and R-410A
©2014-2018, 2020 Goodman Company, L.P.
This manual is to be used by qualified, professionally
trained HVAC technicians only. Goodman does not assume
any responsibility for property damage or personal injury
due to improper service procedures or services performed
by an unqualified person.
RS4200005r14
June 2020
TABLE OF CONTENTS
IMPORTANT INFORMATION . . . . . . . . . . . . . . . . . . . . 2
PRODUCT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . 3
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 12
SCHEDULED MAINTENANCE . . . . . . . . . . . . . . . . . . . . 27
SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
CHECKING VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . 39
CHECKING THERMOSTAT AND WIRING . . . . . . . 39
HEATER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . 40
DRAIN PAN VALVE (HEAT PUMP MODELS ONLY)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
CAPACITOR CHECK . . . . . . . . . . . . . . . . . . . . . . . . 41
CHECKING FAN AND MOTOR BLOWER WINDINGS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
COMPRESSOR WINDINGS . . . . . . . . . . . . . . . . . . 43
OVERLOAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
CHECKING COMPRESSOR EFFICIENCY . . . . . . 44
FILTER DRIER REPLACEMENT . . . . . . . . . . . . . . . 44
REVERSING VALVE . . . . . . . . . . . . . . . . . . . . . . . . . 45
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
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
servise 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
WARNING
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
0140M00517-A
® is a registered trademark of Maytag Corporation or its related companies and is used under license to
Goodman Company, L.P.. Houston TX, USA.. All rights reserved.