FieldBench
Goodman codes

Goodman

EE3

Protect

Open high limit

Primary limit opened. Airflow or overfire.

Walk EE3 in Diagnose

Sign in for the next measurement

First check

1 Airflow before you touch the limit

On Goodman GR9S96 a limit is airflow or overfire until proven otherwise. Do not replace the limit first. Filter, blower wheel, A-coil, and the heat-speed setting for THIS motor (tap, model plug, or communicating CFM — not a sister SKU chart). This is a 9-speed ECM. Read the heat tap before you replace a limit.

Expect: 9-speed heat tap: Match the installer’s tap to the rise range on the rating plate (typically 35–65°F).

The rest of the walkthrough is Diagnose.

On the plates

  • This is a 9-speed ECM. Read the heat tap before you replace a limit.
  • Filter, coil, TES vs the GR9S96 blower chart for this cabinet (A/B/C/D).
  • Manifold vs plate — overfire trips limits with a clean filter.

Plates that use EE3