Rittenhouse Emerson C8578-1 Door Chime

Rittenhouse C8578‑1 is a four‑chime electronic doorbell system that uses a motorized resonator and internal relays to generate the audible tones. Common faults on this model include loose or miswired input leads (especially the black/red and white/white‑red pairs), failure of the internal relay contacts, and power supply voltage drops that cause intermittent or no chime output. First‑check diagnostics: verify 120 V AC at the unit’s terminals, inspect all doorbell wiring for continuity and correct polarity, and test the relay coil resistance to ensure proper operation before proceeding with component replacement.[oss-gpt-20b]

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