Truma Combi 4/6 E (older boards, pre-CP Plus) error code 206
Combi 4/6 E: dirty supply voltage (AC components in power supply)
What to check, and in what order, is in the app. The flow Truma Combi — 12V Supply 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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- Truma Combi Diagnostics Catalogue (2019-09-10)Truma
- _catalogue_extracted.txt