FieldBench
Bryant codes

Bryant

Cap

Protect

Dual run capacitor

HERM and/or FAN section out of rating. Single-stage Comfort dies this way all summer.

Walk Cap in Diagnose

3 plates — walk the one on the cabinet

First check

1 Is Y actually at the contactor?

On Bryant 135SAN a silent outdoor is often no Y. Measure 24 VAC coil-to-C at the contactor on a cool call. Both sections vs microfarad rating, not just one.

Expect: ~24 VAC at the coil when the indoor is calling.

If fail: Indoor Y / IFC / stat — not a capacitor.

The rest of the walkthrough is Diagnose.

On the plates

  • Both sections vs microfarad rating, not just one.
  • Bulged can, open bleed, wrong replacement (single vs dual, voltage).
  • Hard-start add-ons do not fix a dead FAN section.

Plates that use Cap

Same number, other makers

Cap on Bryant is not the same code on these plates.