Amana AMVM970803BN Error Code Ed1: Invalid Shared Data

What Does Code Ed1 Mean?

Code Ed1 means the shared configuration data present in the furnace is invalid — it does not match this model or has become corrupted. Because the integrated control module runs the modulating gas valve and variable-speed blower against that data, invalid data leads to unexpected behavior or no operation at all.

Unlike d0 and Ed0, where the data is missing, Ed1 means data exists but is wrong. This typically follows a board swap where data for a different model was loaded, or a data corruption event.

The remedy is to verify the data set is correct for the exact model and re-populate it with the CoolCloud HVAC App. Eb2 (blower horsepower mismatch) is a specific, blower-focused variant of this same wrong-data problem.

What You'll Notice

• The furnace behaves erratically or will not run, with Ed1 displayed
• Operation differs from normal — wrong staging, airflow, or no start
• The fault started after a control board replacement
• The furnace has not run correctly since the last service

Common Causes

How This Is Diagnosed

A technician compares the loaded shared data against the correct specification for the exact model and, if it is wrong or corrupted, re-populates it using the CoolCloud HVAC App. This is a configuration-verification task requiring the app and model knowledge.

If Ed1 recurs after correct data is loaded, the module's ability to retain data is evaluated, which can indicate a board fault.

When to Call a Professional

This code involves components that are not homeowner-serviceable, so have a licensed HVAC technician diagnose and repair it. Keep in mind:

• Ed1 appeared after a control board replacement
• The furnace operates unpredictably or not at all
• You need the CoolCloud HVAC App to re-populate correct data

✓ Verified against manufacturer service manual — March 2026