Fault Code Lookup

HVAC Sales Master
A001_O
Model Data Configuration Error
This code typically points to
  • Model/configuration data unavailable or incorrect

Next checks to confirm
  1. Not explicitly detailed in accessible snippet beyond fault title
  2. Inspect configuration/model-data integrity

Escalation
Lockout while active, short cycle to restart
Reset behavior
Clears after active fault removed; short-cycle restart behavior applies.
Urgent
Fix now
Source
Rheem RP18AZ Installation Instructions Table 15