Norcold 1210T error code Alternating display + alarm (extended)
Alternating display + alarm pattern from the 1210T power board. Three documented causes share this same communicated signal: (1) AC heaters not connected, connected incorrectly, or both AC heaters failed open; (2) AC relay on the power board stuck closed; (3) extended burner failed-to-ignite condition. Follow the linked flow for the full diagnostic - it walks the tech through the AC heater connection / resistance test, AC relay continuity test, and burner / flame-sense diagnostic path.
What to check, and in what order, is in the app. The flow Norcold 1210T — error code / symptom diagnostic walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Norcold 1200/1210 Series Service Manual (Publication 630613B, 08-10-07)Norcold
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