Harness Fan 1V/Pressure Switch De Dietrich JJJ008418040

This harness connects the fan (1V) and pressure switch in a heating system, ensuring proper communication between the combustion air fan and the safety pressure switch. The fan provides necessary air for combustion, while the pressure switch verifies adequate airflow before allowing burner operation. This wiring assembly is a common replacement part in boiler spare parts and burner spare parts, helping to maintain safe and efficient performance. When the fan or pressure switch wiring becomes faulty, this harness offers a direct replacement to restore correct function. It is designed for easy installation in various gas burner parts configurations.