What does the Ravenheat 28 fault code mean?

Your boiler has detected that the water pressure is too low or isn't circulating properly, causing the system to shut down for safety.

How much does it cost to fix Ravenheat error code 28?

Typical repair cost for the Ravenheat 28 fault is £100-280 including labour.

Check the pressure gauge on the front of the boiler; it should be between 1 and 1.5 bar.

Failed low water – pressure switch or pump, possible issue with pump, incorrect system pressure or the low water switch pressure needs replacing

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Six most common causes of dropping pressure.

Each noise points to a different fault.

Sludge build-up — needs flushing, not bleeding.