RS6612015r7
February 2021
This manual is to be used by qualified, professionally trained HVAC tech
-
nicians 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.
Copyright © 2017 - 2021 Goodman Company, L.P.
Service Instructions
The material in this manual does not supercede manufacturer's
installation and operation instructions
34.5" Chassis ACVM97*BA/AMVM97*BA / GCVM97*BA/GMVM97*BA
Modulating Gas Furnaces
BA revision & above
is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
®
O
NLY
PERSONNEL
THAT
HAVE
BEEN
TRAINED
TO
INSTALL
,
ADJUST
,
SERVICE
OR
REPAIR
(
HEREINAFTER
, “
SERVICE
”)
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
SHOULD
SERVICE
THE
EQUIPMENT
. T
HE
MANUFACTURER
WILL
NOT
BE
RESPONSIBLE
FOR
ANY
INJURY
OR
PROPERTY
DAMAGE
ARISING
FROM
IMPROPER
SERVICE
OR
SERVICE
PROCEDURES
. I
F
YOU
SERVICE
THIS
UNIT
,
YOU
ASSUME
RESPONSIBILITY
FOR
ANY
INJURY
OR
PROPERTY
DAMAGE
WHICH
MAY
RESULT
. I
N
ADDITION
,
IN
JURISDICTIONS
THAT
REQUIRE
ONE
OR
MORE
LICENSES
TO
SERVICE
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
,
ONLY
LICENSED
PERSONNEL
SHOULD
SERVICE
THE
EQUIPMENT
. I
MPROPER
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
.
Cancer and Reproductive Harm
-
www.P65Warnings.ca.gov
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
0140M00517-A
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.
TABLE OF CONTENTS
IMPORTANT INFORMATION......................................2 - 5
PRODUCT IDENTIFICATION...........................................6
SYSTEM OPERATION ...............................................7 - 47
SCHEDULED MAINTENANCE...................................48 - 53
SERVICING.................................................................54 - 68
CHECKING VOLTAGE .................................................55
CHECKING WIRING................................................... 55
CHECKING THERMOSTAT, WIRING......................... 55
CHECKING TRANSFORMER AND CONTROL CIRCUIT ...56
CHECKING DUCT STATIC......................................... 59
CHECKING TEMPERATURE RISE........................... 59
CHECKING PRIMARY LIMIT CONTROL.................. 60
CHECKING AUXILIARY LIMIT CONTROL................ 61
CHECKING FLAME ROLLOUT CONTROL.................61
INDUCED DRAFT BLOWER MOTOR........................62
CHECKING MODULATING GAS VALVE....................62
CHECKING MAIN BURNERS........................................63
CHECKING ORIFICES...................................................63
CHECKING GAS PRESSURE...................................63
CHECKING HOT SURFACE........................................65
CHECKING FOR FLASHBACK....................................66
CHECKING PRESSURE CONTROL.............................66
HIGH ALTITUDE APPLICATION (USA)......................66
CHECKING FOR DELAYED IGNITION..................... 67
CHECKING INTEGRATED IGNITION CONTROL
BOARDS........................................................................67
MEMORY CHIPS (COMFORTBRIDGE™
FURNACE ONLY)...........................................................68
CHECKING FLAME SENSOR.................................... 68
TROUBLESHOOTING..............................................69 - 79
WIRING DIAGRAM..........................................................80
ACCESSORIES..........................................................81 - 84