PCB CB6/6E Combi 6/6E Electronics — Quality Replacement for the Truma Combi 6E heater, designed as the precise electronics module you need to restore original performance. This board carries the part code TR34030-18300PCB and is presented by RV & Marine Supplies, trusted for reliable replacement parts in marine and RV heating systems.

Direct replacement for reliable performance

Built to fit units manufactured between June 2007 and June 2018, this PCB aligns with the heater’s native electrical architecture, enabling a straightforward installation that preserves the control logic and sensor interfaces of the Truma Combi 6E.

• Direct replacement that integrates with existing harnesses and sensors without modification.
• Maintains ignition sequencing, flame monitoring, and temperature regulation to deliver consistent comfort.
• Compact, robust PCB design that mirrors the original component layout to support reliable operation.
• Part code TR34030-18300PCB for precise identification and easy service records.
• Limited stock available — contact us for availability to plan your replacement.

Why this matters for RVs, caravans, and boats

Whether you’re maintaining a motorhome heating system or a marine installation, this replacement electronics board helps you minimize downtime and preserve the Truma Combi 6E’s performance. It’s an ideal solution when the existing PCB shows signs of wear, intermittent operation, or control faults that affect heating and hot water delivery.

With RV & Marine Supplies, you’re choosing a specialist source for heating components that keep mobile living comfortable. This PCB is purpose-built for the Combi 6E family, offering a practical, dependable route to restore warmth and reliability on your next trip or voyage.