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Rheem Fault Code 23
Fault: HALC limit open
Applies To: Rheem Prestige Gas Heater
ACTIVE FAULT CODES WITH COMMUNICATING SYSTEMS
Two levels of fault codes exist: (1) Noncritical and (2) Critical. In general a non-critical fault permits all (or nearly all) operations to proceed and a critical fault prevents all (or nearly all) operations from proceeding. Detailed explanations are given for each fault code and how to diagnose and troubleshoot the problem.