Dometic CCC2 error code E7
Loss of 120 VAC power. All 120 VAC relays switch off after a 120-second delay (which allows for automatic generator start); the 12V furnace relay is unaffected.
What to check, and in what order, is in the app. The flow Dometic CCC2 Diagnostic Mode — Output Test + Sensor/Config Read 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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- DuoTherm_CCC2_Operating_3314149.txt
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