Cofi Ignition transformer TRK2-30PFVD

The Cofi Ignition transformer TRK2-30PFVD is a compact ignition transformer designed for use in low-power diesel and fuel oil burners. It operates on a supply voltage of 220–240 V and is intended for the ignition phase only, providing a stable high-voltage spark to initiate combustion. Its compact design facilitates installation in space-constrained burner systems. This transformer is manufactured in Italy by Cofi.

When selecting a replacement ignition transformer of this type, verify that the primary voltage, secondary voltage and current, duty cycle, mounting arrangement, and terminal type match the existing installation. Measure the physical dimensions and compare the mounting holes and connector pattern to ensure compatibility. Inspect the ignition cable and electrode condition before installation, as damaged components can cause spark leakage.

Common failure modes for ignition transformers include internal short circuits, open windings, or insulation breakdown, which may result in no spark, weak spark, or intermittent ignition. Equipment symptoms include burner lockout, failure to ignite within the safety time, or sparking to ground. Check the transformer for visible damage, measure primary and secondary voltages, and inspect the cable and electrode for wear or cracking.