Goodman · Furnace

Eb1 Lost communication with blower motor

High severity Goodman/Amana *MVC96 (34.5 in. chassis)

What the control is telling you

The control cannot talk to the blower motor.

Applies to: GMVC96, GCVC96, AMVC96, ACVC96 (*BA, ComfortBridge)

Likely causes

Loose wiring at the motor control leads
Failed blower motor
Failed control

Test and repair steps

Turn off power before touching wiring or the board.
Tighten the motor control harness connections.
Check the motor, replace if bad.
Check the control, replace if bad.

Settings for these units

Normal status displays (7-segment) · Goodman/Amana GM9S96/AM9S96
Normal status displays (7-segment) · Goodman/Amana GM9S80/AM9S80
Normal status displays (7-segment) · Goodman/Amana GM9C96/AM9C96
Minimum recommended filter size · Goodman/Amana GM9C96/AM9C96

Models that show this code

16 models in Goodman/Amana *MVC96 (34.5 in. chassis)

*CVC960403BNB**CVC960603BNB**CVC960804CNB**CVC961005CNB**CVC961205DNB**MVC960403BNB**MVC960603BNB**MVC960803BNB**MVC960804CNB**MVC961005CNB**MVC961005DNB**MVC961205DNB*ACVC96AMVC96GCVC96GMVC96

Other codes on the same units

E12 Redundant relay open
E13 Redundant relay stuck closed
Eb0 Blower motor not running
Eb2 Blower motor hp does not match model data
Eb3 Blower motor running in power, temperature or speed limit
Eb4 Blower motor current trip or lost rotor control
Eb5 Blower motor locked rotor
Eb6 Blower motor over/under voltage or over temperature

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Source: Goodman Service and Troubleshooting ACVC96*BA/AMVC96*BA/GCVC96*BA/GMVC96*BA , Alarm Code Table p.56 / Troubleshooting Chart p.63. Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.