Truma Combi 4/6 E (older boards, pre-CP Plus) error code 209
Combi 4/6 E: combustion engine RPM too high
What to check, and in what order, is in the app. The flow Truma Combi — Ignition / Electrode Diagnostics (Code 0088) 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
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- Truma Corp 1-855-558-7862 (Elkhart IN)
- Truma CP Plus Manual