Fault Code Lookup

HVAC Sales Master
T013_F
Flame lost after established (transient protection event)
This code typically points to
  • Not explicitly detailed per-code in accessible booklet snippet

Next checks to confirm
  1. Public booklet does not expose full per-code tree
  2. Use Rheem Contractor App / QR workflow and standard flame-sense checks (sensor cleaning, grounding, gas pressure, flame carryover)

Escalation
Transient event; repeated occurrences escalate to A114_F latched one-hour lockout
Reset behavior
Clears automatically with successful operation and flame stability; does not require manual reset unless escalated.
Service Soon
Schedule repair
Deeper detail available
The manufacturer has pushed full per-code troubleshooting trees into the Rheem Contractor App (QR code on equipment). Use the app for subcode detail beyond what's shown here.
Source
Rheem RDFXYC Installation Instructions fault table