Fault Code Lookup

HVAC Sales Master

A013_F

Flame lost after established (latched alarm)

This code typically points to

Not explicitly detailed per-code in accessible booklet snippet

Next checks to confirm

Use contractor app / QR workflow and standard flame-sense checks

Escalation

Latched alarm state of flame-loss condition

Reset behavior

Clears with one-hour-lockout reset path if escalated, or by power cycling after fault removed.

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 fault table

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