Amana AMVM970803BN Error Code Eb2: Circulator Blower Motor HP Mismatch
What Does Code Eb2 Mean?
Error code Eb2 on the Amana AMVM970803BN means the horsepower value stored in the system's shared data set does not match the horsepower rating of the physical circulator blower motor installed in the furnace. This mismatch prevents the furnace from operating because the control module cannot properly control a motor whose rating it does not recognize.
This fault most commonly occurs after a motor replacement where the replacement motor has a different horsepower rating than the original, or when the shared data was initially populated with incorrect values for the installed motor. The control module reads the motor's identification data when it first communicates with the motor and compares it against the shared data set.
A technician must first verify that the installed blower motor's horsepower matches the nameplate specification for this model. If the motor is incorrect, it must be replaced. If the motor is correct but the shared data is wrong, the technician must re-populate the shared data using the CoolCloud HVAC App with the correct motor specifications.
Common Causes
| Cause | Likelihood | DIY? |
|---|---|---|
| Shared data set incorrectly configured for the installed blower motor | Most common | ✗ Call a pro → |
| Wrong blower motor installed (HP mismatch) | Common | ✗ Call a pro → |
When to Call a Professional
Contact a licensed HVAC technician if:
- Eb2 displays after a motor replacement — verify the replacement motor matches the nameplate HP specification for this model
- If the motor HP is correct but Eb2 persists, a technician must update the shared data using the CoolCloud HVAC App
- Re-populating shared data requires the CoolCloud HVAC App and should only be performed by a trained installer
✓ Verified against manufacturer service manual — March 2026