Common problems guide

The most common Ravenheat Little Star problems

The faults most likely to send a Ravenheat Little Star into lockout — with plain-English causes, what to check first, estimated repair costs and whether you need a Gas Safe engineer.

This model is discontinued. Parts can be harder to source and expensive. If repair costs are mounting, a new A-rated boiler may be the smarter choice.
3 documented codes
3 most common
0 DIY-safe checks
3 engineer needed

The 3 most common faults

01
1B High Engineer

Your boiler has detected that the flame inside has gone out and it cannot get it to stay lit.

Est. cost
£120-250
Parts
Ignition electrode, Gas valve, Flame rectification probe
Full guide for 1B
02
F2 High Engineer

Your boiler has stopped working because a small protective fuse on the internal circuit board has blown, cutting off the power to its main control systems.

Est. cost
£120-200
Parts
315mA fuse, Printed Circuit Board (PCB)
Full guide for F2
03
F1 High Engineer

Your boiler has stopped working because an internal safety fuse has blown, cutting off the power to its main control systems.

Est. cost
£120-220
Parts
2A Glass fuse, Main printed circuit board (PCB)
Full guide for F1
Parts most often replaced

on the Ravenheat Little Star

Ignition electrodeGas valveFlame rectification probe315mA fusePrinted Circuit Board (PCB)2A Glass fuse

Based on parts cited in our fault code database. Your engineer will confirm what's actually needed after diagnosis.

Call a Gas Safe engineer if…

  • You can smell gas or see signs of a leak
  • The Ravenheat shows an Emergency or High severity code
  • The boiler keeps locking out after repeated resets
  • You've tried the DIY checks and the fault hasn't cleared
  • There's visible water leaking from the boiler
  • The flame is yellow or orange instead of blue
See the full 3-code list for the Ravenheat Little Star

Related guides

Boiler losing pressure → No hot water → When to replace → Symptom checker →