© 2006 GE ECM by Regal-Beloit
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Indoor Blower Motors v0.2
Premium ECM Indoor Blower Motors
Then and Now – The History of the GE ECM™
1987 ECM 1.0
Hardware Programmable
1992 ECM 2.0
Complete Motor and Control Design
o Torque Calibrated machine
o Refined airflow regulation algorithm
“motor is the airflow sensor”
o Late point product identification – software
programmable, program could be changed
o Often called the ICM-2
(Integrated Control Module)
o No Longer in Production
1998 ECM 2.3
Response to Reliability Improvement
This is the current production blower motor for most
OEM’s using variable speed.
o Control Electronics and packaging redesign
o Electronics encapsulated for moisture resistance
o New motor controller “ASIC”
o Improved performance and features
o Sometimes called the ICM-2+
(Integrated Control Module)
o Currently in Production
2002 ECM 2.5
Digital Serial Communication
o Enables plug & play HVAC systems
o Fewer replacement part numbers
o More accurate operation and fault reporting
o Currently in Production
Once the program was installed in the motor control it
could not be changed.
o Basic constant airflow Algorithm
o Often Called the ICM-1
(Integrated Control Module)
o No Longer in Production
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