Skip to main content
E08 FAULT CODE
Ravenheat

Low Water Pressure

Low Severity DIY Check Possible

System water pressure is below the safe minimum on Ravenheat CS/WH/HE boilers.

Step-by-Step Fix Guide

  1. Step 1

    Repressurise to 1.5 bar using the filling loop

  2. Step 2

    Reset the boiler

  3. Step 3

    If pressure drops again, contact a Gas Safe engineer

Gas Safe Reminder

Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.

Are you a Gas Safe Engineer?

Access technical fault data, wiring diagrams, and parts lists. Free for verified Gas Safe engineers.