Ram Electronics 3 ignition unit

RAM‑3 is a 24 V AC direct spark ignitor control used in commercial HVAC and industrial furnaces; it energizes the hot‑surface igniter and monitors current draw to open gas valves once a preset threshold is reached. Common failures include overheating or failure of the ballast resistor, burnt ignition coil or sensor, and loss of current‑sense circuitry leading to delayed or no gas valve actuation. First‑check diagnostics: verify 24 V AC input voltage and polarity; inspect the ballast resistor for continuity and excess resistance; test the ignition coil and sensor for proper impedance and continuity; review any stored error codes or indicator LEDs on the unit.[oss-gpt-20b] Post Comment

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