Regal genteq ECM Manuel utilisateur
ECM SERVICE GUIDE
ECM SERVICE GUIDE
Working on the motor with power connected may result
in electrical shock or other conditions that may cause
personal injury, death or property damage.
On models 2.0 / 2.3 / 2.5 / Eon® / X13® / 3.0 / Endura®Pro
always disconnect the power from the HVAC system
and wait at least 5 minutes before opening the motor,
i.e. removing the two bolts from the motor control (end
bell) and disconnecting the 3-pin plug to the motor. This
is to allow the capacitors to dissipate for safety.
Always disconnect the power from the HVAC system
before removing or replacing connectors, servicing
the motor, removing the high voltage plug, and before
reconnecting.
Disconnect AC power from the system and make sure
the blower wheel or fan blade has come to a complete
stop before servicing the motor.
Do not operate motor without blower wheel or fan blade
attached. Such operation will cause the motor speed to
oscillate up and down.
You must have the correct replacement module
and/or motor from the manufacturer that is a direct
replacement for the failed module and/or motor.
USING THE WRONG MODULE and/or motor VOIDS
ALL PRODUCT WARRANTIES AND MAY PRODUCE
UNEXPECTED RESULTS.
Genteq does not condone the repair of any individual
components in the motor control or motor of their
ECM products. This practice is unsafe and may cause
personal injury, death, or property damage.
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
TABLE OF CONTENTS
Using the ECM Service Guide
Motor Diagnostics &Replacement
ECM SERVICE GUIDE
About the Company
Start Here:
Using the ECM Service Guide
HVAC SystemTroubleshooting Basics
Tech Tips
Motor Identification Chart
1
3
4
6
7
Variable Speed Motors
Premium ECM Motor Diagnostics
X13®& Endura®Pro Motors
Standard ECM Motor Diagnostics
Evergreen®Replacement Motors or Retrofit
Retrofit Motor Diagnostics
Outdoor Motors
Motor Identification Chart
Final Checks
10
26
37
50
53
1
Introduction
The ECM Service Guide provided by Genteq
is a troubleshooting tool like no other. It covers
over 20 years worth of OEM (Original Equipment
Manufacturer) and aftermarket residential HVAC ECM
motors including the Variable Speed indoor blower
motor models 2.0, 2.3, Eon
®
, and 3.0, Constant
torque Evergreen
®
indoor blower motor model X13
®
&
Endura
®
Pro, Constant Speed outdoor fan motor model
142 and 142R, and the Constant Torque Evergreen
®
indoor blower motor. Genteq
®
motors have been used
almost exclusively in OEM equipment including fossil
fuel furnaces, electric air handlers, geothermal and
package systems. Regardless of the manufacturer
of the appliance, this guide will help troubleshoot the
Genteq ECM motor driving it. It is our hope that this
guide will provide a simple and accurate process for
troubleshooting all of our motors.
About the Company
In 1987 General Electric introduced ECM technology
to the residential HVAC industry. This technology is
predominantly used in variable speed indoor blower
motors, constant speed induced draft motors and
condensing fan motors.These innovative motors
changed the industry by providing unmatched
efficiency as well as comfort options not possible with
PSC induction motors.
In 2004 the Regal Beloit Corporation acquired General
Electric’s Commercial and HVACR Motors and
Capacitors businesses with the right to use the GE
brand through 2009. These divisions were named GE
ECM by Regal Beloit, GE Commercial Motors by Regal
Beloit and GE Capacitors by Regal Beloit.
In 2009, Regal Beloit announced the rebranding of
those GE branded businesses under the name Genteq,
for markets that include residential and commercial
2
HVAC equipment and electrical applications that
utilize capacitors. With this rebranding, the Genteq
®
logo took the place of GE ECM, GE Commercial
Motors and GE Capacitors logos on all branded
products, sales and marketing materials, Web sites,
communications documents, signage and other
related items.
This rebranding reflects the company’s reputation
for innovation and speaks to the future. We want to
assure customers that this rebranding is an exciting,
progressive step. Genteq continues providing
unparalleled service and developing the progressive,
innovative HVACR solutions for which this company
has always been known. Even if you are not familiar
with the name Regal, you are most likely familiar with
one or more of the motor brands they own such as
Marathon
®
, Lincoln, Leeson
®
and Fasco
®
. Regal is
a leading manufacturer of mechanical and electrical
motion control and power generation products
serving markets throughout the world. Regal is
headquartered in Beloit, Wis., and has manufacturing,
sales, and service facilities throughout the United
States, Canada, Mexico, Europe and Asia.
Genteq will continue to create innovative, premium
comfort and electrical components. Our proven
reputation for high quality, highly reliable products and
strong customer relationships make us the preferred
brand throughout the industry.
For more information on our company, Please visit our
Web site at jointhegeneration.com.
For technical information and training on our OEM
products please visit theDealerToolbox.com. For
information and training on Evergreen
®
motors
visit EvergreenDealer.com. And for information on
homeowner benefits and tax rebates please
visit genteqcomfort.com.
3
The purpose of this guide is to help you accurately
and efficiently troubleshoot Genteq
®
ECM-driven
systems. For ease of troubleshooting and to avoid
misdiagnosis, it is strongly recommended that each
step of this guide be used in the following order:
START HERE:
Using the ECM Service Guide
Read this section before using
Motor Diagnostics & Replacement
Using the ECM Service Guide
Begin with the “HVAC System Troubleshooting
Basics” section on the opposite page.
If the answer to the problem is not solved there,
read all of the Tech Tips on page 6.
After reading all of the Tech Tips, go to the “Motor
ID” section of this guide on page 7 to be sure you
use the procedures for the correct motor.
After determining which motor you are working
on from the “Motor ID” chart on page 7, go to the
section in this guide for the motor model you are
working on and follow the instructions listed there.
1.
2.
3.
4.
4
Before troubleshooting the ECM motor,
check these system basics if applicable:
HVAC System
Troubleshooting Basics
Confirm that the correct thermostat input and
ONLY the correct input voltage is present at the
interface or main control board on the furnace/
air handler or outdoor unit. Loose or broken low-
voltage wires are also potential problem areas and
can cause intermittent problems.
For the heating and/or cooling systems, use the
manufacturers guide to confirm proper demands
(heat or cool), especially on multi-stage systems.
Use the “Sequence of Operation” charts and the
“Thermostat Wiring Diagrams,” found in these
guides to confirm proper wiring and operation.
When checking low-voltage connections, always
use the C terminal on the board,never ground.
Check the setting of the jumper pins or switches
or menu selections on the manufacturer’s control
board or system interface. Do not assume they
are correct; use the manufacturer’s guide to select
the proper airflow, delays, and profiles.
Always
disconnect the main power to the unit when
making these adjustments, unless required for
interface operation.
1.
2.
3.
START
HERE
5
Check all terminal/plug connections both at the
furnace/air-handler or outdoor unit control board
and at the motor.
Always disconnect power
to the system before disconnecting and
reconnecting plugs.
Look for:
Loose plugs and/or loose pin connections in
the plug.
Burnt, bent or loose pins or seats.
Confirm there are no limits, rollouts or safeties
tripped. Also check for any fault codes present
on the furnace/air-handler or outdoor unit control
boards.
If fault codes are present, follow the
manufacturer’s recommendations to resolve
the problem.
If these checks do not solve the problem, or if a
fault code reveals a motor problem, read theTech
Tips on page 6, and go to the “Motor ID” section
on page 7 to identify the motor. Then go to the
corresponding motor section in this guide for
additional diagnostics.
4.
5.
6.
6
Tech Tips
Do not automatically assume the ECM motor has
failed.
Follow this guide completely before replacing
it.
When it is necessary to disconnect the power from
the HVAC system, it is always good practice to
verify that voltage has been disconnected
with a
voltmeter.
A True- RMS meter is not needed to check high
voltage or low voltage (communication voltage) to
the motor.
Always pull on the connector and not the wires.
Most connectors are also keyed. Reconnecting a
connector the wrong way could damage the motor.
When checking any plug connector, the meter leads
are most likely larger than the terminals or socket.
Using thin leads will prevent the terminals from
being damaged by voltage checks. Thinner leads
are also available in a 90º angle as needed. Go to
thedealertoolbox.com
for part numbers and ordering
information if needed.
TECH TIP #1
TECH TIP #2
TECH TIP #3
TECH TIP #4
TECH TIP #5
TECH
TIPS
ECM X13
®
& Endura
®
Pro
OEM Constant Torque Indoor Blower Motor
Evergreen®Aftermarket Constant Torque Indoor Blower Motor
Identification
Sticker
Heat sink
Speed taps
All Evergreen Motors are aftermarket replacements
All Evergreen Motors are Painted Green
Evergreen CM, AH & EM
have a missing
wire upper plug
All Evergreen Motors have a heat sink here
OEM Constant Speed Outdoor Fan Motor
Shaft down application
rounded end of control up
Shaft up application
remote located control
Cover plate over
open end of control
Umbilical cord from motor
shell to cover plate
ECM 142 Control
ECM 142RControl
Shaft up application
rounded end of control up
Cover plate over open
end of control
Umbilical cord from motor
shell to cover plate
ECM 142R
C L G N
1 2 3 4 5
Evergreen IM
has a white or yellow voltage jumper
Motor Identification Chart
7
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