2
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.
IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS
RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS
WARNING
IMPORTANT INFORMATION
WARNING
GOODMAN WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM
IMPROPER SERVICE OR SERVICE PROCEDURES. IF YOU INSTALL OR PERFORM SERVICE ON THIS UNIT,
YOU ASSUME RESPONSIBILITY FOR ANY PERSONAL INJURY OR PROPERTY DAMAGE WHICH MAY
RESULT. MANY JURISDICTIONS REQUIRE A LICENSE TO INSTALL OR SERVICE HEATING AND AIR
CONDITIONING EQUIPMENT.
INDEX
PRODUCT IDENTIFICATION ........................................................................................................ 4
SPECIFICATIONS ......................................................................................................................... 6
PROPER INSTALLATION ........................................................................................................... 17
WALL SLEEVE INSTALLATION ........................................................................................................................... 16
FRONT REMOVAL ................................................................................................................................................ 18
CHASSIS INSTALLATION .................................................................................................................................... 19
WIRING ................................................................................................................................................................. 19
OPERATING CONTROLS ..................................................................................................................................... 20
SCHEMATICS BASED ON 1 STAGE COOL,
2 STAGE HEAT MECHANICAL THERMOSTATS.................................................................................21
WIRELESS COMMUNICATIONS.............................................................................................................26
CONFIGURATION SETTINGS ..............................................................................................................................
32
MAINTENANCE........................................................................................................................... 33
OPERATIONS .............................................................................................................................. 36
SEQUENCE OF OPERATION ...............................................................................................................................
36
SERVICING ................................................................................................................................. 41
DIGITAL BOARD DIAGNOSTICS ........................................................................................................................
49
DISASSEMBLY ........................................................................................................................... 59
SCHEMATICS ............................................................................................................................. 62
