Fault Code Lookup

HVAC Sales Master
A011_F
Failed ignition (latched alarm)
This code typically points to
  • Not explicitly detailed per-code in accessible booklet snippet

Next checks to confirm
  1. Use Rheem Contractor App / QR-code workflow for detailed tree
  2. Public booklet only confirms identifier and that deeper fault troubleshooting is in contractor app

Escalation
Repeated ignition failure escalates to A115_F one-hour soft-lockout family
Reset behavior
One-hour lockout expires automatically, OR can be interrupted by removing power for minimum 5 seconds OR removing heat call.
Urgent
Fix now
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 92-110869-01-01, fault table and one-hour soft-lockout section