Fault Code Lookup

HVAC Sales Master
A114_F
One-hour lockout: flame lost failure
This code typically points to
  • Repeated flame-loss events during heat calls

Next checks to confirm
  1. Find and correct underlying flame-sense issue

Escalation
One-hour soft lockout
Reset behavior
Auto-clear after one hour OR power interrupt ≥5 seconds OR remove 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 one-hour soft-lockout section