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Eb7 Blower motor missing parameters

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

What the control is telling you

The motor was not given enough data to run and failed to start 40 times in a row.

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

Likely causes

  • Control does not hold the correct shared data set
  • Locked rotor condition

Test and repair steps

  1. Turn off power before touching wiring or the board.
  2. Check that the control has the correct shared data for the model (see Ed0 and Ed4).
  3. Check for a locked rotor (see Eb5).

Settings for these units

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

  • 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
  • Eb9 Inadequate airflow
  • Ec1 Network communication alarm
  • Ec2 E-module network communication alarm
  • Ec3 Bluetooth module network communication alarm

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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.