Rittenhouse Emerson C8577 Door Chime

The Rittenhouse Emerson C8577 is an 8‑note door chime base that uses a motorized resonator driven by a low‑voltage transformer and relay circuit. Common failures include a burned or failed transformer, faulty relay contacts, worn resonator coils, and capacitor degradation in the power supply section. First‑check diagnostics: verify 12–24 V AC input to the transformer, inspect the transformer windings for shorts or open turns, test the relay coil resistance and contact integrity, and visually examine the resonator assembly for corrosion or mechanical damage.[oss-gpt-20b]

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