FieldBench
Bryant codes

Bryant

33 / 13

Protect

Limit

Airflow or rollout.

Walk 33 / 13 in Diagnose

7 plates — walk the one on the cabinet

First check

1 Airflow before you touch the limit

On Bryant 820T 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). Filter, AC coil on top, blower, Infinity heat CFM.

Expect: Rise in the rating-plate window. Static vs this cabinet’s blower chart.

The rest of the walkthrough is Diagnose.

On the plates

  • Evolution heat CFM, filter, coil. Rollout is manual reset.
  • Evolution heat CFM, filter, coil. Rollout manual reset.
  • Filter, coil on top, blower, Evolution heat CFM. Rollout manual reset.
  • Filter, AC coil on top, blower, Infinity heat CFM.
  • Rollout: exchanger / burners / flue. Manual reset.
  • Infinity heat CFM, filter, coil, return.
  • Not a 59SC5 heat tap and not a 59TP6 model plug.
  • Rollout is manual reset — inspect exchanger first.

Plates that use 33 / 13

Same number, other makers

33 / 13 on Bryant is not the same code on these plates.