HEX: 88 - Fuel pump interruption

Fault Details:

• The fuel pump is interrupted or shorted to supply voltage (UB).

Recommended Solution:

1. Perform an electrical check of the fuel system.

2. Inspect the fuel pump cable for damage, wear, or exposed wires.

3. Ensure the plug is fully seated and pins are correctly inserted.

4. Check for oxidation or any visual damage.

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