Blower fault, blower can still run: blower at max speed/torque or temperature limit because static pressure is too high.
§1Likely causes
- Restricted or improperly designed ductwork
- Dirty filter
§2Safe DIY steps
- Turn off power and clean or replace the filter
- Remove obstructions to airflow
- Technicianrepair ductwork so static pressure is within published values
§3When to call a pro
Call a licensed HVAC technician: if a clean filter does not clear the code.
Find a local HVAC pro →§4Other Rheem codes
One-hour lockout, caused by repeated failed ignition (11), water sensed (59), dead blower (61), internal fault (93), flame lost 5 times (13) or unexpected flame (14).
11RheemFailed ignition. After four failed attempts the control enters one-hour lockout (10).
12RheemLow flame sense: flame sense current is weak or marginal. Furnace keeps running.
13RheemFlame lost after established.
14RheemFlame present with gas valve off. Extremely critical; furnace will not operate.
30RheemOpen fuse, usually from a 24 VAC short to common or ground.