Bryant
13 / 33
ProtectLimit
Airflow. 80% coil on top is still a dirty A-coil.
Walk 13 / 33 in Diagnose
4 plates — walk the one on the cabinet
First check
1 Airflow before you touch the limit
On Bryant 800S 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, heat speed / VS setup, coil.
Expect: Rise in the rating-plate window. Static vs this cabinet’s blower chart.
The rest of the walkthrough is Diagnose.
On the plates
- VS heat CFM / setup — not a 9-speed tap.
- Filter, coil, return. Rollout is manual reset.
- Heat-speed tap / 18-speed setup, filter, coil.
- 915SB 33 is the same winter call as Carrier 59SC5.
- Filter, heat speed / VS setup, coil.
Plates that use 13 / 33
Same number, other makers
13 / 33 on Bryant is not the same code on these plates.