FieldBench
Goodman codes

Goodman

EbL / EbU

Lockout

Circulator current

9-speed ECM current too low (EbL) or unexpected (EbU).

Walk EbL / EbU in Diagnose

Sign in for the next measurement

First check

1 Is the wheel free?

Spin the Goodman GR9S96 blower by hand. Ice, debris, or a seized bearing is not a control problem. Confirm the motor type on this plate — serial ECM, 9-speed tap, or X-13 — before you grab a capacitor. Harness seated at motor and IFC. A half-seated tap plug throws these.

Expect: Wheel free. Correct motor family for this IFC.

The rest of the walkthrough is Diagnose.

On the plates

  • Harness seated at motor and IFC. A half-seated tap plug throws these.
  • Locked rotor, wet winding, or a PSC motor someone hung on this IFC.

Plates that use EbL / EbU