Brand guide
All Truma water heater guides
Choose the symptom or code that matches your unit. Confirm the exact model and control generation against the rating plate before following model-specific instructions.
Pilot and ignition problems
Truma AquaGo Problems: Field Fixes
AquaGo no-heat is 12V, LP, the water filter, freeze lock, or ignition — not a generic RV tank. Decode it.
Error codes and flashing lightsTruma Water Heater Flashing Light Codes
A flashing Truma AquaGo or Combi light signals a lockout or warning. How to read the blink pattern or code, and when one reset is reasonable.