HEX: 03 - Flame failure

Fault Details:

• The flame went out during operation.

Recommended Solution:

1. Inspect the air intake and exhaust systems for blockages, sharp bends, or kinks in the hoses.

2. Check fuel line connections for damage.

3. Test the fuel pump by applying 12 V to the pump pins in 1-second intervals; listen for clicks.

4. Inspect the glow plug for damage, cracks, or soot. Check cables and plugs for oxidation.

Note: Fault code meanings can vary depending on the model and controller. If you’re unsure, contact Heatso directly for guidance.