Truma Combi 4/6 E (older boards, pre-CP Plus) error code 202
Combi 4/6 E older boards: flame not detected (or poor earth/battery to minus terminal)
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
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- Truma Corp 1-855-558-7862 (Elkhart IN)
- Truma CP Plus Manual